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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1700452.pdf | 262 kB | Shaun Ewing | Jan 29, 1929 00:00 |
|
US-1700452-A // Electron-discharge device // Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 262 kB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700452-A // Electron-discharge device // Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 1700457.pdf | 498 kB | Shaun Ewing | Jan 29, 1929 00:00 |
|
US-1700457-A // Acoustic device // Thuras Albert L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 498 kB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700457-A // Acoustic device // Thuras Albert L. // Bell Telephone Labor Inc | ||||
| PDF File 1700458.pdf | 872 kB | Shaun Ewing | Jan 29, 1929 00:00 |
|
US-1700458-A // Party-line telephone system // Waller Lee R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 872 kB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700458-A // Party-line telephone system // Waller Lee R. // Bell Telephone Labor Inc | ||||
| PDF File 1700460.pdf | 151 kB | Shaun Ewing | Jan 29, 1929 00:00 |
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US-1700460-A // Metallurgical process // White John H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 151 kB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700460-A // Metallurgical process // White John H. // Bell Telephone Labor Inc | ||||
| PDF File 1700467.pdf | 1.39 MB | Shaun Ewing | Jan 29, 1929 00:00 |
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US-1700467-A // Telephone-exchange system // Clark Edgar H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.39 MB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700467-A // Telephone-exchange system // Clark Edgar H. // Bell Telephone Labor Inc | ||||
| PDF File 1700470.pdf | 433 kB | Shaun Ewing | Jan 29, 1929 00:00 |
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US-1700470-A // Electromagnetic relay // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 433 kB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700470-A // Electromagnetic relay // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 1700476.pdf | 731 kB | Shaun Ewing | Jan 29, 1929 00:00 |
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US-1700476-A // Submarine signaling cable // Gilbert John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 731 kB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700476-A // Submarine signaling cable // Gilbert John J. // Bell Telephone Labor Inc | ||||
| PDF File 1700530.pdf | 106 kB | Shaun Ewing | Jan 29, 1929 00:00 |
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US-1700530-A // Acoustic diaphragm // Holland Newman H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 106 kB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700530-A // Acoustic diaphragm // Holland Newman H. // Bell Telephone Labor Inc | ||||
| PDF File 1700536.pdf | 436 kB | Shaun Ewing | Jan 29, 1929 00:00 |
|
US-1700536-A // Frequency translating circuits // Keith Clyde R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 436 kB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700536-A // Frequency translating circuits // Keith Clyde R. // Bell Telephone Labor Inc | ||||
| PDF File 1700833.pdf | 324 kB | Shaun Ewing | Feb 05, 1929 00:00 |
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US-1700833-A // Sound-recording system // Engel Theodore J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 324 kB | Shaun Ewing | Feb 05, 1929 00:00 | US-1700833-A // Sound-recording system // Engel Theodore J. // Bell Telephone Labor Inc | ||||
| PDF File 1701100.pdf | 827 kB | Shaun Ewing | Feb 05, 1929 00:00 |
|
US-1701100-A // High-speed telegraph repeater employing vibrating relays // Cummings George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 827 kB | Shaun Ewing | Feb 05, 1929 00:00 | US-1701100-A // High-speed telegraph repeater employing vibrating relays // Cummings George C. // Bell Telephone Labor Inc | ||||
| PDF File 1702568.pdf | 520 kB | Shaun Ewing | Feb 19, 1929 00:00 |
|
US-1702568-A // Constant frequency wave source // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Feb 19, 1929 00:00 | US-1702568-A // Constant frequency wave source // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1705891.pdf | 2.59 MB | Shaun Ewing | Mar 19, 1929 00:00 |
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US-1705891-A // Power line signaling // Arnold Henry B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.59 MB | Shaun Ewing | Mar 19, 1929 00:00 | US-1705891-A // Power line signaling // Arnold Henry B. // Bell Telephone Labor Inc | ||||
| PDF File 1705903.pdf | 1.87 MB | Shaun Ewing | Mar 19, 1929 00:00 |
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US-1705903-A // Power line signaling // Davee Lawrence W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.87 MB | Shaun Ewing | Mar 19, 1929 00:00 | US-1705903-A // Power line signaling // Davee Lawrence W. // Bell Telephone Labor Inc | ||||
| PDF File 1705906.pdf | 1.41 MB | Shaun Ewing | Mar 19, 1929 00:00 |
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US-1705906-A // Telephone system // Dehn Joseph W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.41 MB | Shaun Ewing | Mar 19, 1929 00:00 | US-1705906-A // Telephone system // Dehn Joseph W. // Bell Telephone Labor Inc | ||||
| PDF File 1705913.pdf | 383 kB | Shaun Ewing | Mar 19, 1929 00:00 |
|
US-1705913-A // High-frequency submarine cable // Gilbert John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 383 kB | Shaun Ewing | Mar 19, 1929 00:00 | US-1705913-A // High-frequency submarine cable // Gilbert John J. // Bell Telephone Labor Inc | ||||
| PDF File 1705993.pdf | 360 kB | Shaun Ewing | Mar 19, 1929 00:00 |
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US-1705993-A // Voltage-limiting device // Oswald Arthur A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 360 kB | Shaun Ewing | Mar 19, 1929 00:00 | US-1705993-A // Voltage-limiting device // Oswald Arthur A. // Bell Telephone Labor Inc | ||||
| PDF File 1707486.pdf | 705 kB | Shaun Ewing | Apr 02, 1929 00:00 |
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US-1707486-A // Electrooptical transmission // Kishpaugh Arthur W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 705 kB | Shaun Ewing | Apr 02, 1929 00:00 | US-1707486-A // Electrooptical transmission // Kishpaugh Arthur W. // Bell Telephone Labor Inc | ||||
| PDF File 1707544.pdf | 442 kB | Shaun Ewing | Apr 02, 1929 00:00 |
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US-1707544-A // Electrodynamic device // Thuras Albert L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 442 kB | Shaun Ewing | Apr 02, 1929 00:00 | US-1707544-A // Electrodynamic device // Thuras Albert L. // Bell Telephone Labor Inc | ||||
| PDF File 1707545.pdf | 345 kB | Shaun Ewing | Apr 02, 1929 00:00 |
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US-1707545-A // Acoustic device // Wente Edward C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 345 kB | Shaun Ewing | Apr 02, 1929 00:00 | US-1707545-A // Acoustic device // Wente Edward C. // Bell Telephone Labor Inc |
