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- Douglas_H._Ring abstract "Douglas H. Ring (March 28, 1907 in Montana – September 8, 2000 in Red Bank, New Jersey) was one of the Bell Labs engineers that invented the cell phone. The history of cellular phone technology began on December 11, 1947 with an internal memo written by Douglas H. Ring in which he proposed development of a cellular telephone system by AT&T.Although Martin Cooper of Motorola is considered the inventor of the first handheld cellular telephone and the first person to demonstrate to reporters a handheld cell phone call, Cooper's April 1973 call used cellular telephone technology invented and developed by Bell Labs engineers.".
- Douglas_H._Ring birthDate "1907-03-28".
- Douglas_H._Ring birthPlace Montana.
- Douglas_H._Ring birthYear "1907".
- Douglas_H._Ring deathDate "2000-09-08".
- Douglas_H._Ring deathPlace New_Jersey.
- Douglas_H._Ring deathYear "2000".
- Douglas_H._Ring wikiPageExternalLink 46mobile.html.
- Douglas_H._Ring wikiPageExternalLink Ringcellreport1947.pdf.
- Douglas_H._Ring wikiPageExternalLink Douglas%20&%20Hanna%20Ring%20Compessed.pdf.
- Douglas_H._Ring wikiPageExternalLink chp4.html.
- Douglas_H._Ring wikiPageID "11421949".
- Douglas_H._Ring wikiPageRevisionID "577308307".
- Douglas_H._Ring dateOfBirth "1907-03-28".
- Douglas_H._Ring dateOfDeath "2000-09-08".
- Douglas_H._Ring hasPhotoCollection Douglas_H._Ring.
- Douglas_H._Ring name "Ring, Douglas H.".
- Douglas_H._Ring placeOfBirth "Montana".
- Douglas_H._Ring placeOfDeath "Red Bank, New Jersey".
- Douglas_H._Ring shortDescription "AMerican inventor".
- Douglas_H._Ring description "AMerican inventor".
- Douglas_H._Ring description "AMerican inventor".
- Douglas_H._Ring subject Category:1907_births.
- Douglas_H._Ring subject Category:2000_deaths.
- Douglas_H._Ring subject Category:American_inventors.
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- Douglas_H._Ring comment "Douglas H. Ring (March 28, 1907 in Montana – September 8, 2000 in Red Bank, New Jersey) was one of the Bell Labs engineers that invented the cell phone. The history of cellular phone technology began on December 11, 1947 with an internal memo written by Douglas H.".
- Douglas_H._Ring label "Douglas H. Ring".
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- Douglas_H._Ring givenName "Douglas H.".
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- Douglas_H._Ring name "Douglas H. Ring".
- Douglas_H._Ring name "Ring, Douglas H.".
- Douglas_H._Ring surname "Ring".