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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2454045.pdf | 625 kB | Shaun Ewing | Nov 16, 1948 00:00 |
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US-2454045-A // Amplifier // Ellwood Walter B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 625 kB | Shaun Ewing | Nov 16, 1948 00:00 | US-2454045-A // Amplifier // Ellwood Walter B. // Bell Telephone Labor Inc | ||||
| PDF File 2429222.pdf | 623 kB | Shaun Ewing | Oct 21, 1947 00:00 |
|
US-2429222-A // Method of making contact wires // Ehrhardt Robert A. ; Humphrey Robert G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 623 kB | Shaun Ewing | Oct 21, 1947 00:00 | US-2429222-A // Method of making contact wires // Ehrhardt Robert A. ; Humphrey Robert G. // Bell Telephone Labor Inc | ||||
| PDF File 2427005.pdf | 620 kB | Shaun Ewing | Sept 09, 1947 00:00 |
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US-2427005-A // Directive microwave antenna // King Archie P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 620 kB | Shaun Ewing | Sept 09, 1947 00:00 | US-2427005-A // Directive microwave antenna // King Archie P. // Bell Telephone Labor Inc | ||||
| PDF File 2452655.pdf | 620 kB | Shaun Ewing | Nov 02, 1948 00:00 |
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US-2452655-A // Cathode-ray oscilloscope circuit // Hecht George ; Meacham Larned A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 620 kB | Shaun Ewing | Nov 02, 1948 00:00 | US-2452655-A // Cathode-ray oscilloscope circuit // Hecht George ; Meacham Larned A. // Bell Telephone Labor Inc | ||||
| PDF File 2484626.pdf | 620 kB | Shaun Ewing | Oct 11, 1949 00:00 |
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US-2484626-A // Electromechanical transducer // Keller Arthur C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 620 kB | Shaun Ewing | Oct 11, 1949 00:00 | US-2484626-A // Electromechanical transducer // Keller Arthur C. // Bell Telephone Labor Inc | ||||
| PDF File 2527817.pdf | 619 kB | Shaun Ewing | Oct 31, 1950 00:00 |
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US-2527817-A // Variable impedance wave guide matching transformer // Hey Herman C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 619 kB | Shaun Ewing | Oct 31, 1950 00:00 | US-2527817-A // Variable impedance wave guide matching transformer // Hey Herman C. // Bell Telephone Labor Inc | ||||
| PDF File 2426189.pdf | 618 kB | Shaun Ewing | Aug 26, 1947 00:00 |
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US-2426189-A // Object locating system // Espenschied Lloyd // Bell Telephone Labor Inc | |||
| Version 1 (current) | 618 kB | Shaun Ewing | Aug 26, 1947 00:00 | US-2426189-A // Object locating system // Espenschied Lloyd // Bell Telephone Labor Inc | ||||
| PDF File 2405246.pdf | 617 kB | Shaun Ewing | Aug 06, 1946 00:00 |
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US-2405246-A // Sound recording system // Watson Edward F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 617 kB | Shaun Ewing | Aug 06, 1946 00:00 | US-2405246-A // Sound recording system // Watson Edward F. // Bell Telephone Labor Inc | ||||
| PDF File 2395575.pdf | 616 kB | Shaun Ewing | Feb 26, 1946 00:00 |
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US-2395575-A // System for the transmission of motion // Mitchell Doren // Bell Telephone Labor Inc | |||
| Version 1 (current) | 616 kB | Shaun Ewing | Feb 26, 1946 00:00 | US-2395575-A // System for the transmission of motion // Mitchell Doren // Bell Telephone Labor Inc | ||||
| PDF File 2509065.pdf | 616 kB | Shaun Ewing | May 23, 1950 00:00 |
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US-2509065-A // Electron discharge apparatus // Kirkpatrick William E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 616 kB | Shaun Ewing | May 23, 1950 00:00 | US-2509065-A // Electron discharge apparatus // Kirkpatrick William E. // Bell Telephone Labor Inc | ||||
| PDF File 2415841.pdf | 615 kB | Shaun Ewing | Feb 18, 1947 00:00 |
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US-2415841-A // Conducting material and device and method of making them // Ohl Russell S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 615 kB | Shaun Ewing | Feb 18, 1947 00:00 | US-2415841-A // Conducting material and device and method of making them // Ohl Russell S. // Bell Telephone Labor Inc | ||||
| PDF File 2459030.pdf | 615 kB | Shaun Ewing | Jan 11, 1949 00:00 |
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US-2459030-A // Tunable magnetron // Jonas Herbert C. ; Laico Joseph P. ; Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 615 kB | Shaun Ewing | Jan 11, 1949 00:00 | US-2459030-A // Tunable magnetron // Jonas Herbert C. ; Laico Joseph P. ; Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2422691.pdf | 614 kB | Shaun Ewing | Jun 24, 1947 00:00 |
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US-2422691-A // Prismatic radiating navigational system // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 614 kB | Shaun Ewing | Jun 24, 1947 00:00 | US-2422691-A // Prismatic radiating navigational system // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2438892.pdf | 614 kB | Shaun Ewing | Apr 06, 1948 00:00 |
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US-2438892-A // Electrical translating materials and devices and methods of making them // Becker Joseph A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 614 kB | Shaun Ewing | Apr 06, 1948 00:00 | US-2438892-A // Electrical translating materials and devices and methods of making them // Becker Joseph A. // Bell Telephone Labor Inc | ||||
| PDF File 2460090.pdf | 613 kB | Shaun Ewing | Jan 25, 1949 00:00 |
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US-2460090-A // Frequency selective apparatus // Kannenberg Walter F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 613 kB | Shaun Ewing | Jan 25, 1949 00:00 | US-2460090-A // Frequency selective apparatus // Kannenberg Walter F. // Bell Telephone Labor Inc | ||||
| PDF File 2406383.pdf | 613 kB | Shaun Ewing | Aug 27, 1946 00:00 |
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US-2406383-A // Electrical terminal // Kindermann Wilfred J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 613 kB | Shaun Ewing | Aug 27, 1946 00:00 | US-2406383-A // Electrical terminal // Kindermann Wilfred J. // Bell Telephone Labor Inc | ||||
| PDF File 2518311.pdf | 611 kB | Shaun Ewing | Aug 08, 1950 00:00 |
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US-2518311-A // Torsional high-pass mechanical filter // Hartley Ralph V. L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 611 kB | Shaun Ewing | Aug 08, 1950 00:00 | US-2518311-A // Torsional high-pass mechanical filter // Hartley Ralph V. L. // Bell Telephone Labor Inc | ||||
| PDF File 2406825.pdf | 611 kB | Shaun Ewing | Sept 03, 1946 00:00 |
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US-2406825-A // Privacy system for speech transmission // French Norman R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 611 kB | Shaun Ewing | Sept 03, 1946 00:00 | US-2406825-A // Privacy system for speech transmission // French Norman R. // Bell Telephone Labor Inc | ||||
| PDF File 2516211.pdf | 609 kB | Shaun Ewing | Jul 25, 1950 00:00 |
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US-2516211-A // Filter connecting telephone transmitter to power line during calls // Hochgraf Lester // Bell Telephone Labor Inc | |||
| Version 1 (current) | 609 kB | Shaun Ewing | Jul 25, 1950 00:00 | US-2516211-A // Filter connecting telephone transmitter to power line during calls // Hochgraf Lester // Bell Telephone Labor Inc | ||||
| PDF File 2438897.pdf | 609 kB | Shaun Ewing | Apr 06, 1948 00:00 |
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US-2438897-A // Method of plating contact surfaces of magnetic reeds // Brown John T. L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 609 kB | Shaun Ewing | Apr 06, 1948 00:00 | US-2438897-A // Method of plating contact surfaces of magnetic reeds // Brown John T. L. // Bell Telephone Labor Inc |
