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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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Website preview thumbnail for : StateWide Investigations
Has the most experience, seasoned and talented licensed investigators in the State providing Investigative, Surveillance and Litigation Services for well known Investigative Agencies & Law Firms. I...
http://www.statewideinvestigation.com
Website preview thumbnail for : Paladin Investigations
Is a full service Chandler Private Investigation Agency based in Chandler Arizona. John Brewington is the managing member and licensed Arizona Private Investigator in the Phoenix, AZ Metroplex. We ...
http://www.paladinpi.com
Website preview thumbnail for : Blackhawk Investigators
Commercial & private investigators in London provide due diligence services, fraud investigation, asset tracing, background checks & surveillance services.
http://www.blackhawkinvestigations.co.uk

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We are a Bury UK based retailer of a wide range of baby and children's products. We specialise in offering prams & pushchairs.
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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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Open a Citizens Bank account and discover convenient online banking features and the personal finance options that you deserve. Choose a checking account or high interest savings account that fits ...
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Animal and Pet related classified ads listing pet and animal related products and information only. Our Classified Ads are indexed by state and city and are searchable by zip code. Search for pet r...
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