ISBN10: 0786426098, ISBN13: 9780786426096, [publisher: McFarland 2006-01-31, Jefferson, North Carolina] Softcover Language: ENG
[London, United Kingdom] [Publication Year: 2006]

ISBN10: 0786426098, ISBN13: 9780786426096, [publisher: McFarland 2006-01-31, Jefferson, North Carolina] Softcover Language: ENG
[London, United Kingdom] [Publication Year: 2006]

ISBN10: 0786426098, ISBN13: 9780786426096, [publisher: McFarland] Softcover New Book. Shipped from UK. Established seller since 2000.
[Wood Dale, IL, U.S.A.] [Publication Year: 2006]

ISBN10: 0786426098, ISBN13: 9780786426096, [publisher: McFarland & Co Inc Pub] Softcover new edition edition. 240 pages. 8.75x6.00x0.50 inches. In Stock.
[Exeter, United Kingdom] [Publication Year: 2006]

McFarland & Co Inc Pub, Date: 2006. Paperback. New. new edition edition. 240 pages. 8.75x6.00x0.50 inches. 2006. McFarland & Co Inc Pub ISBN 0786426098 9780786426096 [GB]

McFarland 1/31/2006 12: 00: 00 AM Softcover PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.

ISBN10: 0786426098, ISBN13: 9780786426096, [publisher: Mcfarland And Company, Inc.] Softcover nach der Bestellung gedruckt Neuware - Printed after ordering - On March 7, 1876, the U.S. Patent Office issued to a young inventor named Alexander Graham Bell what is arguably the most valuable patent ever: entitled ''improvements in telegraphy,'' in truth it secured for Bell the basic principles involved in a telephone.On the same day that Bell filed his patent application, a caveat (a preliminary patent document) was filed by Elisha Gray. This coincidence sparked the first of many debates over whether Bell was the true inventor of the telephone. In the early 1860s Johann Phillipp Reis developed a version of the instrument, but his claims against Bell were hampered by the bungling of his lawyers in demonstrating his instrument in court. This work is a first look at the many men who developed the telephone and an examination of their claims against Bell's patent. A lay description of the phone is also provided, as well as a history of the development of the telephone system.
[Einbeck, Germany] [Publication Year: 2006]
Show/Hide image