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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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Category Information : Divorce

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Website preview thumbnail for : Peace Talks divorce mediation
Is a full service mediation law firm that specializes in helping people in Southern California settle their divorce in a sane and sensible manner. Divorce Lawyers, Los Angeles: Our divorce lawyer's...
http://www.peace-talks.com

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Whether your divorce is amicable or contentious, when and how to tell your children can be a difficult issue. Your children may already know that there are difficulties in your home life and marriage, but you may be surprised at the level of their sophistication and knowledge about divorce.
Divorce refers to the dissolution or the legal end of a marriage. Every state has its own legal requirements governing when a divorce may be granted. These legal requirements may include a residency requirement, grounds or a reason for the divorce, among others.

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As recruitment specialists, Bis Henderson work with businesses to successfully hire supply chain, logistics and procurement professionals on a permanent and interim basis across professional, manag...
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Website preview thumbnail for : Dental Specialists
Drs. Richards and Miller care for a pediatric dental practice dedicated to providing dental care, education and community service to Lake County and surrounding areas.
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Each quarter, twenty general or topical web directories are evaluated and rated according to predetermined criteria. The top ten are placed in competition with one another and ten additional direct...
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Website preview thumbnail for : Alive Network & Entertainment Agency
Has grown into the largest supplier of live entertainment for weddings, corporate events and private parties in the UK. With over 90,000 previous customers and an artist roster of over 1750 bands, ...
http://www.alivenetwork.com

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