Acoustic telegraphy

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1	PDF Document Add to Reading List Source URL: www.telephonetribute.com Language: English - Date: 2014-11-02 19:07:13 Technology Science and technology Telegraphy Equipment Telephony Reis telephone Charles Bourseul Telephone Elisha Gray Acoustic telegraphy Alexander Graham Bell Joseph Henry
2	The Bell telegraph and telephone Add to Reading List Source URL: pandora.nla.gov.au Language: English - Date: 2006-10-30 22:35:43 Alexander Graham Bell National Geographic Society Scottish inventors Invention of the telephone Telephone Bell Acoustic telegraphy Telegraphy Elisha Gray Technology Telephony Electronic engineering
3	ANTENNA Page 2 April/June 2006 Add to Reading List Source URL: www.chezbasilio.org Language: English - Date: 2012-09-19 06:10:59 Alexander Graham Bell Telegraphy Invention of the telephone Telephone Elisha Gray Antonio Meucci Acoustic telegraphy Reis telephone Carbon microphone Technology Telephony Electronic engineering
4	Entrepreneurshipin the Early Development of the Telephone:How Did William Orton and Gardiner Hubbard Conceptualize Add to Reading List Source URL: www.h-net.org Language: English - Date: 2004-02-09 15:01:06 Science Telegraphy Gardiner Greene Hubbard Acoustic telegraphy Electrical telegraph Elisha Gray Randy Orton Western Union Telephone Technology Alexander Graham Bell National Geographic Society