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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1700457.pdf | 498 kB | Shaun Ewing | Jan 29, 1929 00:00 |
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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 1700452.pdf | 262 kB | Shaun Ewing | Jan 29, 1929 00:00 |
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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 1696274.pdf | 641 kB | Shaun Ewing | Dec 25, 1928 00:00 |
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US-1696274-A // Substation circuits // Johnson Kenneth S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 641 kB | Shaun Ewing | Dec 25, 1928 00:00 | US-1696274-A // Substation circuits // Johnson Kenneth S. // Bell Telephone Labor Inc | ||||
| PDF File 1696271.pdf | 2.48 MB | Shaun Ewing | Dec 25, 1928 00:00 |
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US-1696271-A // Call-charging telephone-exchange system // Hague Alfred E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.48 MB | Shaun Ewing | Dec 25, 1928 00:00 | US-1696271-A // Call-charging telephone-exchange system // Hague Alfred E. // Bell Telephone Labor Inc | ||||
| PDF File 1696267.pdf | 1.25 MB | Shaun Ewing | Dec 25, 1928 00:00 |
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US-1696267-A // Telephone system // Dunham Bert G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Dec 25, 1928 00:00 | US-1696267-A // Telephone system // Dunham Bert G. // Bell Telephone Labor Inc | ||||
| PDF File 1696265.pdf | 401 kB | Shaun Ewing | Dec 25, 1928 00:00 |
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US-1696265-A // Acoustic device // Buckley Oliver E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 401 kB | Shaun Ewing | Dec 25, 1928 00:00 | US-1696265-A // Acoustic device // Buckley Oliver E. // Bell Telephone Labor Inc | ||||
| PDF File 1696261.pdf | 373 kB | Shaun Ewing | Dec 25, 1928 00:00 |
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US-1696261-A // Transmission system // Williams Samuel B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 373 kB | Shaun Ewing | Dec 25, 1928 00:00 | US-1696261-A // Transmission system // Williams Samuel B. // Bell Telephone Labor Inc | ||||
| PDF File 1696248.pdf | 161 kB | Shaun Ewing | Dec 25, 1928 00:00 |
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US-1696248-A // Circuits for synchronous motors // Morton Edmund R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 161 kB | Shaun Ewing | Dec 25, 1928 00:00 | US-1696248-A // Circuits for synchronous motors // Morton Edmund R. // Bell Telephone Labor Inc | ||||
| PDF File 1695057.pdf | 459 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1695057-A // Telephone system // Murphy Paul B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 459 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695057-A // Telephone system // Murphy Paul B. // Bell Telephone Labor Inc | ||||
| PDF File 1695048.pdf | 429 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1695048-A // Picture transmission // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 429 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695048-A // Picture transmission // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 1695041.pdf | 228 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1695041-A // Production of magnetic dust cores // Elmen Gustaf W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 228 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695041-A // Production of magnetic dust cores // Elmen Gustaf W. // Bell Telephone Labor Inc | ||||
| PDF File 1695040.pdf | 1.47 MB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1695040-A // Multiplex-telegraph system // Clokey Allison A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.47 MB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695040-A // Multiplex-telegraph system // Clokey Allison A. // Bell Telephone Labor Inc | ||||
| PDF File 1695039.pdf | 479 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1695039-A // Electric wave signaling system // Clement Lewis M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 479 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695039-A // Electric wave signaling system // Clement Lewis M. // Bell Telephone Labor Inc | ||||
| PDF File 1695035.pdf | 637 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1695035-A // Electric regulator // Stcller Hugh M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 637 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695035-A // Electric regulator // Stcller Hugh M. // Bell Telephone Labor Inc | ||||
| PDF File 1691098.pdf | 443 kB | Shaun Ewing | Nov 13, 1928 00:00 |
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US-1691098-A // Means for coupling circuits of different impedance characteristics // Whiting Donald F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 443 kB | Shaun Ewing | Nov 13, 1928 00:00 | US-1691098-A // Means for coupling circuits of different impedance characteristics // Whiting Donald F. // Bell Telephone Labor Inc | ||||
| PDF File 1690300.pdf | 784 kB | Shaun Ewing | Nov 06, 1928 00:00 |
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US-1690300-A // Transmission of pictures by electricity // Horton Joseph W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 784 kB | Shaun Ewing | Nov 06, 1928 00:00 | US-1690300-A // Transmission of pictures by electricity // Horton Joseph W. // Bell Telephone Labor Inc | ||||
| PDF File 1690280.pdf | 454 kB | Shaun Ewing | Nov 06, 1928 00:00 |
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US-1690280-A // Electrical testing // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 454 kB | Shaun Ewing | Nov 06, 1928 00:00 | US-1690280-A // Electrical testing // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 1690234.pdf | 1.28 MB | Shaun Ewing | Nov 06, 1928 00:00 |
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US-1690234-A // Trunking circuit to centralized operator's position // Lamberty Frederick R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.28 MB | Shaun Ewing | Nov 06, 1928 00:00 | US-1690234-A // Trunking circuit to centralized operator's position // Lamberty Frederick R. // Bell Telephone Labor Inc | ||||
| PDF File 1690210.pdf | 1.04 MB | Shaun Ewing | Nov 06, 1928 00:00 |
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US-1690210-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.04 MB | Shaun Ewing | Nov 06, 1928 00:00 | US-1690210-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | ||||
| PDF File 1690201.pdf | 459 kB | Shaun Ewing | Nov 06, 1928 00:00 |
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US-1690201-A // Signaling conductor // Mougey Wilbur E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 459 kB | Shaun Ewing | Nov 06, 1928 00:00 | US-1690201-A // Signaling conductor // Mougey Wilbur E. // Bell Telephone Labor Inc |
