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    TELEPHONE SWITCHBOARD
    January 17, 1882 - Chicago, Illinois, U.S.A.

    A telephone switchboard was issued a U.S. patent to Leroy Firman of Chicago, Illinois (No. 252,576), which was assigned to the Western Electric Manufacturing Co. Also of Chicago. With his invention of a “multiple switchboard for telephone exchanges,” Firman addressed the problem of increasing numbers of subscribers. Previously, single switchboards, each with an attendant, served their group of individual lines. A large exchange was thus divided up into a number of internal exchange switchboards which were worked together as necessary, with trunk lines between the boards. Firman devised an arrangement to handle an exchange of a thousand or more subscribers with line status information exchanged between switchmen.

    PUNCHBOARDS
    January 17, 1905 - Chicago, Illinois, U.S.A.

    The first U.S. patent was issued for a punchboard to Charles A. Brewer and Clinton G. Scannell of Chicago, Illinois, described as “vending devices.” They were manufactured by Charles A. Brewer & Sons in the same city. (No. 780,086). Even though the equivalent of punchboards had been around for many years, they had never been available in such a neat and portable form. The invention of board stuffing machines and ticket folding and plaiting machines in the late 1910s was probably the key factor which allowed the punchboard industry to flourish. Once the boards became cheap to manufacture, they flooded the country. Noted gambling author John Scarne estimates that 30 million punchboards were sold in 1910-15.

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    about Stolen On New Year's

    More vehicles are stolen on New Year's Day than any other holiday throughout the year. (So does that mean thieves are having their last fling before changing their ways or are they trying for a big score to start the New Year?) Harvard Medical School
    about Eyesight Myth and Fact

    Myth: Staring at a computer screen all day is harmful to the eyes. Fact: Spending the day staring at a screen can tire or strain your eyes, but it will not hurt them. Make sure lighting doesn't create a glare on your screen. When spending long periods at your keyboard, take a break now and then to rest your eyes to reduce fatigue. Also, don't forget to blink. Your eyes need to stay lubricated to feel comfortable.

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My Guardians provide UK Guardianship Services & advice to parents & children worldwide on how to obtain guardianship & schooling in the UK.
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Trusted and used in over 15,500 schools in the UK and worldwide. Teaching resources including Activities, Topic Tools, Learn Screens, Student Tools, ThinkIts and Activity Sheets aligned to core cu...
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Is owned and operated by EDUsys Services Pvt. Limited (Edusys), a leading Education, Training Provider in the Global Market with operations in USA, UK, Australia, Canada, India, Hong Kong, Germany,...
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Driving Lessons and crash / intensive driving courses in Bournemouth. Fully qualified driving instructors. Money back guarantee. Evening and weekend driving lessons. As well as the usual weekly and...
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At Cisco (NASDAQ: CSCO) customers come first and an integral part of our DNA is creating long-lasting customer partnerships and working with them to identify their needs and provide solutions that ...
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You are visiting National Geographic Education's completely redesigned website National Geographic Education develops programs for educational settings-in and out of school.
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For over 30 years, School Zone has been providing some of the most effective instructional preschool workbooks for teachers and parents.
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Southwest College of Naturopathic Medicine (SCNM) is an alternative medical school located in Arizona offering courses in natural medicine and holistic health. Students come to Southwest College fr...
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CBSE Sample Papers are the way to prepare exam. It is essential to solve the sample papers as this contain all the important questions. We have to do practice and note that how much time you take t...
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My Guardians provide UK Guardianship Services & advice to parents & children worldwide on how to obtain guardianship & schooling in the UK.
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Search Office Space was founded in 1993 by Richard Smith in order to bring together all elements of the serviced office space market into one convenient single point of contact, with clients having...
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Komfortable Nichtraucher Ferienwohnung im Herzen vom schoenen Fischerdorf Greetsiel.
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