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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1742928.pdf | 410 kB | Shaun Ewing | Jan 07, 1930 00:00 |
|
US-1742928-A // Telephone trunk circuits // Nicoll Robert I.d. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 410 kB | Shaun Ewing | Jan 07, 1930 00:00 | US-1742928-A // Telephone trunk circuits // Nicoll Robert I.d. // Bell Telephone Labor Inc | ||||
| PDF File 1742927.pdf | 652 kB | Shaun Ewing | Jan 07, 1930 00:00 |
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US-1742927-A // Telephone-exchange system // Nicoll Robert I.d. ; Davis Richard C. ; Nostitz Erich Von // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Jan 07, 1930 00:00 | US-1742927-A // Telephone-exchange system // Nicoll Robert I.d. ; Davis Richard C. ; Nostitz Erich Von // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 1742920.pdf | 3.28 MB | Shaun Ewing | Jan 07, 1930 00:00 |
|
US-1742920-A // Telephone-exchange system // Matthies William H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.28 MB | Shaun Ewing | Jan 07, 1930 00:00 | US-1742920-A // Telephone-exchange system // Matthies William H. // Bell Telephone Labor Inc | ||||
| PDF File 1742916.pdf | 3.50 MB | Shaun Ewing | Jan 07, 1930 00:00 |
|
US-1742916-A // Telephone-exchange system // Irvine Frank S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.50 MB | Shaun Ewing | Jan 07, 1930 00:00 | US-1742916-A // Telephone-exchange system // Irvine Frank S. // Bell Telephone Labor Inc | ||||
| PDF File 1742899.pdf | 411 kB | Shaun Ewing | Jan 07, 1930 00:00 |
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US-1742899-A // Synchronous telegraphy // Clokey Allison A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 411 kB | Shaun Ewing | Jan 07, 1930 00:00 | US-1742899-A // Synchronous telegraphy // Clokey Allison A. // Bell Telephone Labor Inc | ||||
| PDF File 1741767.pdf | 460 kB | Shaun Ewing | Dec 31, 1929 00:00 |
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US-1741767-A // Carrier-current signaling system // Green Charles W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 460 kB | Shaun Ewing | Dec 31, 1929 00:00 | US-1741767-A // Carrier-current signaling system // Green Charles W. // Bell Telephone Labor Inc | ||||
| PDF File 1739752.pdf | 442 kB | Shaun Ewing | Dec 17, 1929 00:00 |
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US-1739752-A // Magnetic material and appliance // Elmen Gustaf W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 442 kB | Shaun Ewing | Dec 17, 1929 00:00 | US-1739752-A // Magnetic material and appliance // Elmen Gustaf W. // Bell Telephone Labor Inc | ||||
| PDF File 1739699.pdf | 260 kB | Shaun Ewing | Dec 17, 1929 00:00 |
|
US-1739699-A // Electrical transmission circuits // Whittle Horace // Bell Telephone Labor Inc | |||
| Version 1 (current) | 260 kB | Shaun Ewing | Dec 17, 1929 00:00 | US-1739699-A // Electrical transmission circuits // Whittle Horace // Bell Telephone Labor Inc | ||||
| PDF File 1739668.pdf | 563 kB | Shaun Ewing | Dec 17, 1929 00:00 |
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US-1739668-A // Transmission system // Green Charles W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 563 kB | Shaun Ewing | Dec 17, 1929 00:00 | US-1739668-A // Transmission system // Green Charles W. // Bell Telephone Labor Inc | ||||
| PDF File 1739068.pdf | 284 kB | Shaun Ewing | Dec 10, 1929 00:00 |
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US-1739068-A // Method of producing materials in finely-divided form // Harris James E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 284 kB | Shaun Ewing | Dec 10, 1929 00:00 | US-1739068-A // Method of producing materials in finely-divided form // Harris James E. // Bell Telephone Labor Inc | ||||
| PDF File 1739052.pdf | 297 kB | Shaun Ewing | Dec 10, 1929 00:00 |
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US-1739052-A // Production of finely-divided metallic materials // White John H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 297 kB | Shaun Ewing | Dec 10, 1929 00:00 | US-1739052-A // Production of finely-divided metallic materials // White John H. // Bell Telephone Labor Inc | ||||
| PDF File 1738327.pdf | 587 kB | Shaun Ewing | Dec 03, 1929 00:00 |
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US-1738327-A // Vibration device // Smythe Edwin H. ; Lane Clarence E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 587 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1738327-A // Vibration device // Smythe Edwin H. ; Lane Clarence E. // Bell Telephone Labor Inc | ||||
| PDF File 1738322.pdf | 448 kB | Shaun Ewing | Dec 03, 1929 00:00 |
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US-1738322-A // Acoustic device // Schlenker Vesper A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 448 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1738322-A // Acoustic device // Schlenker Vesper A. // Bell Telephone Labor Inc | ||||
| PDF File 1738307.pdf | 535 kB | Shaun Ewing | Dec 03, 1929 00:00 |
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US-1738307-A // Metallic element // Mckeehan Louis W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 535 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1738307-A // Metallic element // Mckeehan Louis W. // Bell Telephone Labor Inc | ||||
| PDF File 1738302.pdf | 2.46 MB | Shaun Ewing | Dec 03, 1929 00:00 |
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US-1738302-A // Telephone system // Krecek Joseph A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.46 MB | Shaun Ewing | Dec 03, 1929 00:00 | US-1738302-A // Telephone system // Krecek Joseph A. // Bell Telephone Labor Inc | ||||
| PDF File 1738299.pdf | 348 kB | Shaun Ewing | Dec 03, 1929 00:00 |
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US-1738299-A // Intermittently-operated signaling device // Kille Lindley A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 348 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1738299-A // Intermittently-operated signaling device // Kille Lindley A. // Bell Telephone Labor Inc | ||||
| PDF File 1738298.pdf | 909 kB | Shaun Ewing | Dec 03, 1929 00:00 |
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US-1738298-A // Telephone system // Johnson Lewis H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 909 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1738298-A // Telephone system // Johnson Lewis H. // Bell Telephone Labor Inc | ||||
| PDF File 1738294.pdf | 630 kB | Shaun Ewing | Dec 03, 1929 00:00 |
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US-1738294-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 630 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1738294-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc | ||||
| PDF File 1738293.pdf | 918 kB | Shaun Ewing | Dec 03, 1929 00:00 |
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US-1738293-A // Electrical controlling device // Gooderham John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 918 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1738293-A // Electrical controlling device // Gooderham John W. // Bell Telephone Labor Inc | ||||
| PDF File 1738292.pdf | 561 kB | Shaun Ewing | Dec 03, 1929 00:00 |
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US-1738292-A // Submarine duplex telegraph system // Gilbert John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 561 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1738292-A // Submarine duplex telegraph system // Gilbert John J. // Bell Telephone Labor Inc |
