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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1747847.pdf | 436 kB | Shaun Ewing | Feb 18, 1930 00:00 |
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US-1747847-A // Method of manufacturing acoustic radiators // Schlenker Vesper A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 436 kB | Shaun Ewing | Feb 18, 1930 00:00 | US-1747847-A // Method of manufacturing acoustic radiators // Schlenker Vesper A. // Bell Telephone Labor Inc | ||||
| PDF File 1656737.pdf | 434 kB | Shaun Ewing | Jan 17, 1928 00:00 |
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US-1656737-A // Insulating material and method of producing the same // Kemp Archie R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 434 kB | Shaun Ewing | Jan 17, 1928 00:00 | US-1656737-A // Insulating material and method of producing the same // Kemp Archie R. // 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 1778386.pdf | 432 kB | Shaun Ewing | Oct 14, 1930 00:00 |
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US-1778386-A // Sound reproducer // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 432 kB | Shaun Ewing | Oct 14, 1930 00:00 | US-1778386-A // Sound reproducer // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 1614254.pdf | 431 kB | Shaun Ewing | Jan 11, 1927 00:00 |
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US-1614254-A // Voltage-limiting device // Persons George A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 431 kB | Shaun Ewing | Jan 11, 1927 00:00 | US-1614254-A // Voltage-limiting device // Persons George A. // 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 1762775.pdf | 429 kB | Shaun Ewing | Jun 10, 1930 00:00 |
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US-1762775-A // Inductance device // Ganz Albert G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 429 kB | Shaun Ewing | Jun 10, 1930 00:00 | US-1762775-A // Inductance device // Ganz Albert G. // Bell Telephone Labor Inc | ||||
| PDF File 1687211.pdf | 425 kB | Shaun Ewing | Oct 09, 1928 00:00 |
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US-1687211-A // Telephone receiver // Jones Warren C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 425 kB | Shaun Ewing | Oct 09, 1928 00:00 | US-1687211-A // Telephone receiver // Jones Warren C. // Bell Telephone Labor Inc | ||||
| PDF File 1762759.pdf | 424 kB | Shaun Ewing | Jun 10, 1930 00:00 |
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US-1762759-A // Volume-control system // Jr. John C. Burkholder, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 424 kB | Shaun Ewing | Jun 10, 1930 00:00 | US-1762759-A // Volume-control system // Jr. John C. Burkholder, // Bell Telephone Labor Inc | ||||
| PDF File 1647259.pdf | 424 kB | Shaun Ewing | Nov 01, 1927 00:00 |
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US-1647259-A // Adjustable coil // Herbert-Vadersen // Bell Telephone Labor Inc | |||
| Version 1 (current) | 424 kB | Shaun Ewing | Nov 01, 1927 00:00 | US-1647259-A // Adjustable coil // Herbert-Vadersen // Bell Telephone Labor Inc | ||||
| PDF File 1673023.pdf | 421 kB | Shaun Ewing | Jun 12, 1928 00:00 |
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US-1673023-A // Carrier-wave repeater // Rettenmeyer Francis X. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Jun 12, 1928 00:00 | US-1673023-A // Carrier-wave repeater // Rettenmeyer Francis X. // Bell Telephone Labor Inc | ||||
| PDF File 1762730.pdf | 421 kB | Shaun Ewing | Jun 10, 1930 00:00 |
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US-1762730-A // Heat treatment of magnetic materials // Mckeehan Louis W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Jun 10, 1930 00:00 | US-1762730-A // Heat treatment of magnetic materials // Mckeehan Louis W. // Bell Telephone Labor Inc | ||||
| PDF File 1714683.pdf | 419 kB | Shaun Ewing | May 28, 1929 00:00 |
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US-1714683-A // Electrical insulation // Lowry Homer H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 419 kB | Shaun Ewing | May 28, 1929 00:00 | US-1714683-A // Electrical insulation // Lowry Homer H. // Bell Telephone Labor Inc | ||||
| PDF File 1715542.pdf | 417 kB | Shaun Ewing | Jun 04, 1929 00:00 |
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US-1715542-A // Electrical coils and system employing such coils // Elmen Gustaf W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 417 kB | Shaun Ewing | Jun 04, 1929 00:00 | US-1715542-A // Electrical coils and system employing such coils // Elmen Gustaf W. // Bell Telephone Labor Inc | ||||
| PDF File 1654085.pdf | 413 kB | Shaun Ewing | Dec 27, 1927 00:00 |
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US-1654085-A // Voltage-limiting device // Lorance George T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 413 kB | Shaun Ewing | Dec 27, 1927 00:00 | US-1654085-A // Voltage-limiting device // Lorance George T. // Bell Telephone Labor Inc | ||||
| PDF File 1689318.pdf | 412 kB | Shaun Ewing | Oct 30, 1928 00:00 |
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US-1689318-A // Repeater circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 412 kB | Shaun Ewing | Oct 30, 1928 00:00 | US-1689318-A // Repeater circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 1743708.pdf | 412 kB | Shaun Ewing | Jan 14, 1930 00:00 |
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US-1743708-A // Telephone system // Collis Raymond E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 412 kB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743708-A // Telephone system // Collis Raymond E. // 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 1742928.pdf | 410 kB | Shaun Ewing | Jan 07, 1930 00:00 |
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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 1753353.pdf | 408 kB | Shaun Ewing | Apr 08, 1930 00:00 |
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US-1753353-A // Electrical system for secret transmission // Steinberg John C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 408 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753353-A // Electrical system for secret transmission // Steinberg John C. // Bell Telephone Labor Inc |
