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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1724905.pdf | 1.15 MB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1724905-A // Telephone system // Caverly Harry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.15 MB | Shaun Ewing | Aug 20, 1929 00:00 | US-1724905-A // Telephone system // Caverly Harry C. // Bell Telephone Labor Inc | ||||
| PDF File 1724923.pdf | 404 kB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1724923-A // Submarine-telegraph system // Gilbert John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 404 kB | Shaun Ewing | Aug 20, 1929 00:00 | US-1724923-A // Submarine-telegraph system // Gilbert John J. // Bell Telephone Labor Inc | ||||
| PDF File 1724924.pdf | 543 kB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1724924-A // Telephone system // Graham Frank H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 543 kB | Shaun Ewing | Aug 20, 1929 00:00 | US-1724924-A // Telephone system // Graham Frank H. // Bell Telephone Labor Inc | ||||
| PDF File 1724962.pdf | 540 kB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1724962-A // Electrical testing system // Peoples Robert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 540 kB | Shaun Ewing | Aug 20, 1929 00:00 | US-1724962-A // Electrical testing system // Peoples Robert E. // Bell Telephone Labor Inc | ||||
| PDF File 1724972.pdf | 1020 kB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1724972-A // Glass-working machine // Schwerin Paul ; Pfeiffer John G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1020 kB | Shaun Ewing | Aug 20, 1929 00:00 | US-1724972-A // Glass-working machine // Schwerin Paul ; Pfeiffer John G. // Bell Telephone Labor Inc | ||||
| PDF File 1724989.pdf | 286 kB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1724989-A // Contactor drum for telephone-central-office equipment // Barber Charles C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 286 kB | Shaun Ewing | Aug 20, 1929 00:00 | US-1724989-A // Contactor drum for telephone-central-office equipment // Barber Charles C. // Bell Telephone Labor Inc | ||||
| PDF File 1724994.pdf | 577 kB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1724994-A // Duplex telegraph system for loaded cables // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 577 kB | Shaun Ewing | Aug 20, 1929 00:00 | US-1724994-A // Duplex telegraph system for loaded cables // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 1725022.pdf | 348 kB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1725022-A // Alarm // Stacy Leland J. ; Krom Myron E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 348 kB | Shaun Ewing | Aug 20, 1929 00:00 | US-1725022-A // Alarm // Stacy Leland J. ; Krom Myron E. // Bell Telephone Labor Inc | ||||
| PDF File 1725032.pdf | 927 kB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1725032-A // Secret communicating system // Jr. Charles L. Weis, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 927 kB | Shaun Ewing | Aug 20, 1929 00:00 | US-1725032-A // Secret communicating system // Jr. Charles L. Weis, // Bell Telephone Labor Inc | ||||
| PDF File 1725377.pdf | 514 kB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1725377-A // Direct-current-supply system // Siegmund Humphreys O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 514 kB | Shaun Ewing | Aug 20, 1929 00:00 | US-1725377-A // Direct-current-supply system // Siegmund Humphreys O. // Bell Telephone Labor Inc | ||||
| PDF File 1725566.pdf | 448 kB | Shaun Ewing | Aug 20, 1929 00:00 |
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US-1725566-A // Secret communication system // Chesnut Roy W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 448 kB | Shaun Ewing | Aug 20, 1929 00:00 | US-1725566-A // Secret communication system // Chesnut Roy W. // Bell Telephone Labor Inc | ||||
| PDF File 1726105.pdf | 398 kB | Shaun Ewing | Aug 27, 1929 00:00 |
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US-1726105-A // Acoustic device // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 398 kB | Shaun Ewing | Aug 27, 1929 00:00 | US-1726105-A // Acoustic device // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 1727550.pdf | 380 kB | Shaun Ewing | Sept 10, 1929 00:00 |
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US-1727550-A // Composite conductor // Legg Victor E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 380 kB | Shaun Ewing | Sept 10, 1929 00:00 | US-1727550-A // Composite conductor // Legg Victor E. // Bell Telephone Labor Inc | ||||
| PDF File 1728122.pdf | 995 kB | Shaun Ewing | Sept 10, 1929 00:00 |
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US-1728122-A // Television system // Horton Joseph W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 995 kB | Shaun Ewing | Sept 10, 1929 00:00 | US-1728122-A // Television system // Horton Joseph W. // Bell Telephone Labor Inc | ||||
| PDF File 1728304.pdf | 313 kB | Shaun Ewing | Sept 17, 1929 00:00 |
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US-1728304-A // Film-drive mechanism // Pfannenstiehl Harry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 313 kB | Shaun Ewing | Sept 17, 1929 00:00 | US-1728304-A // Film-drive mechanism // Pfannenstiehl Harry // Bell Telephone Labor Inc | ||||
| PDF File 1728311.pdf | 333 kB | Shaun Ewing | Sept 17, 1929 00:00 |
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US-1728311-A // Electrical converting and measuring system // Taylor Alfred T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 333 kB | Shaun Ewing | Sept 17, 1929 00:00 | US-1728311-A // Electrical converting and measuring system // Taylor Alfred T. // Bell Telephone Labor Inc | ||||
| PDF File 1729806.pdf | 343 kB | Shaun Ewing | Oct 01, 1929 00:00 |
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US-1729806-A // Electrodynamic device // Thuras Albert L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 343 kB | Shaun Ewing | Oct 01, 1929 00:00 | US-1729806-A // Electrodynamic device // Thuras Albert L. // Bell Telephone Labor Inc | ||||
| PDF File 1730424.pdf | 198 kB | Shaun Ewing | Oct 08, 1929 00:00 |
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US-1730424-A // Magnetic ball or roller bearing // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 198 kB | Shaun Ewing | Oct 08, 1929 00:00 | US-1730424-A // Magnetic ball or roller bearing // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 1730614.pdf | 570 kB | Shaun Ewing | Oct 08, 1929 00:00 |
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US-1730614-A // Synchronous vibratory relay system // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 570 kB | Shaun Ewing | Oct 08, 1929 00:00 | US-1730614-A // Synchronous vibratory relay system // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 1730981.pdf | 447 kB | Shaun Ewing | Oct 08, 1929 00:00 |
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US-1730981-A // Telephone system // Murphy Paul B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 447 kB | Shaun Ewing | Oct 08, 1929 00:00 | US-1730981-A // Telephone system // Murphy Paul B. // Bell Telephone Labor Inc |
