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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 3691452.pdf | 796 kB | Shaun Ewing | Sept 12, 1972 00:00 |
|
US-3691452-A // Control of ac power by a logic comparator // Gabriel A. Aguiar // Western Union Telegraph Co | |||
| Version 1 (current) | 796 kB | Shaun Ewing | Sept 12, 1972 00:00 | US-3691452-A // Control of ac power by a logic comparator // Gabriel A. Aguiar // Western Union Telegraph Co | ||||
| PDF File 3663760.pdf | 1.75 MB | Shaun Ewing | May 16, 1972 00:00 |
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US-3663760-A // Method and apparatus for time division multiplex transmission of binary data // Russell G. De Witt // Western Union Telegraph Co | |||
| Version 1 (current) | 1.75 MB | Shaun Ewing | May 16, 1972 00:00 | US-3663760-A // Method and apparatus for time division multiplex transmission of binary data // Russell G. De Witt // Western Union Telegraph Co | ||||
| PDF File 3660606.pdf | 2.06 MB | Shaun Ewing | May 02, 1972 00:00 |
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US-3660606-A // Method and apparatus for time division multiplex transmission of data and voice signals // Russell G. De Witt // Western Union Telegraph Co | |||
| Version 1 (current) | 2.06 MB | Shaun Ewing | May 02, 1972 00:00 | US-3660606-A // Method and apparatus for time division multiplex transmission of data and voice signals // Russell G. De Witt // Western Union Telegraph Co | ||||
| PDF File 3638075.pdf | 762 kB | Shaun Ewing | Jan 25, 1972 00:00 |
|
US-3638075-A // Communication line relay system // William H. Brown // Western Union Telegraph Co | |||
| Version 1 (current) | 762 kB | Shaun Ewing | Jan 25, 1972 00:00 | US-3638075-A // Communication line relay system // William H. Brown // Western Union Telegraph Co | ||||
| PDF File 3624294.pdf | 316 kB | Shaun Ewing | Nov 30, 1971 00:00 |
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US-3624294-A // Distributed multiplexing of low-speed telegraph subscriber lines // John E. Cox ; Earl D. Anderson Jr. // Western Union Telegraph Co | |||
| Version 1 (current) | 316 kB | Shaun Ewing | Nov 30, 1971 00:00 | US-3624294-A // Distributed multiplexing of low-speed telegraph subscriber lines // John E. Cox ; Earl D. Anderson Jr. // Western Union Telegraph Co | ||||
| PDF File 3619649.pdf | 300 kB | Shaun Ewing | Nov 09, 1971 00:00 |
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US-3619649-A // Slow-speed bootstrap sweep circuit // Melvin R. Hoffman // Western Union Telegraph Co | |||
| Version 1 (current) | 300 kB | Shaun Ewing | Nov 09, 1971 00:00 | US-3619649-A // Slow-speed bootstrap sweep circuit // Melvin R. Hoffman // Western Union Telegraph Co | ||||
| PDF File 3581120.pdf | 541 kB | Shaun Ewing | May 25, 1971 00:00 |
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US-3581120-A // Schmitt trigger circuit with variable hysteresis and insensitivity to temperature change // Hans H. Nord // Western Union Telegraph Co | |||
| Version 1 (current) | 541 kB | Shaun Ewing | May 25, 1971 00:00 | US-3581120-A // Schmitt trigger circuit with variable hysteresis and insensitivity to temperature change // Hans H. Nord // Western Union Telegraph Co | ||||
| PDF File 3562492.pdf | 583 kB | Shaun Ewing | Feb 09, 1971 00:00 |
|
US-3562492-A // Tape reader // Stan A. Kirkowski ; Vincent Chan ; William V. Johnson // Western Union Telegraph Co | |||
| Version 1 (current) | 583 kB | Shaun Ewing | Feb 09, 1971 00:00 | US-3562492-A // Tape reader // Stan A. Kirkowski ; Vincent Chan ; William V. Johnson // Western Union Telegraph Co | ||||
| PDF File 3529081.pdf | 770 kB | Shaun Ewing | Sept 15, 1970 00:00 |
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US-3529081-A // Means for applying additional communications signals to existing channels // Bernard Rider // Western Union Telegraph Co | |||
| Version 1 (current) | 770 kB | Shaun Ewing | Sept 15, 1970 00:00 | US-3529081-A // Means for applying additional communications signals to existing channels // Bernard Rider // Western Union Telegraph Co | ||||
| PDF File 3522537.pdf | 716 kB | Shaun Ewing | Aug 04, 1970 00:00 |
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US-3522537-A // Vestigial sideband transmission system having two channels in quadrature // John E. Boughtwood // Western Union Telegraph Co | |||
| Version 1 (current) | 716 kB | Shaun Ewing | Aug 04, 1970 00:00 | US-3522537-A // Vestigial sideband transmission system having two channels in quadrature // John E. Boughtwood // Western Union Telegraph Co | ||||
| PDF File 3504186.pdf | 870 kB | Shaun Ewing | Mar 31, 1970 00:00 |
|
US-3504186-A // Data card transmitter with card controlled gating means // Newton L. Feld // Western Union Telegraph Co | |||
| Version 1 (current) | 870 kB | Shaun Ewing | Mar 31, 1970 00:00 | US-3504186-A // Data card transmitter with card controlled gating means // Newton L. Feld // Western Union Telegraph Co | ||||
| PDF File 3495099.pdf | 321 kB | Shaun Ewing | Feb 10, 1970 00:00 |
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US-3495099-A // Polar leg adapter circuit // John E. Boughtwood // Western Union Telegraph Co | |||
| Version 1 (current) | 321 kB | Shaun Ewing | Feb 10, 1970 00:00 | US-3495099-A // Polar leg adapter circuit // John E. Boughtwood // Western Union Telegraph Co | ||||
| PDF File 3465960.pdf | 544 kB | Shaun Ewing | Sept 09, 1969 00:00 |
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US-3465960-A // Multi-stylus assembly // Oscar W. Swenson // Western Union Telegraph Co | |||
| Version 1 (current) | 544 kB | Shaun Ewing | Sept 09, 1969 00:00 | US-3465960-A // Multi-stylus assembly // Oscar W. Swenson // Western Union Telegraph Co | ||||
| PDF File 3461276.pdf | 477 kB | Shaun Ewing | Aug 12, 1969 00:00 |
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US-3461276-A // Reusable data card // Pasquale F.j. Recca // Western Union Telegraph Co | |||
| Version 1 (current) | 477 kB | Shaun Ewing | Aug 12, 1969 00:00 | US-3461276-A // Reusable data card // Pasquale F.j. Recca // Western Union Telegraph Co | ||||
| PDF File 3436477.pdf | 652 kB | Shaun Ewing | Apr 01, 1969 00:00 |
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US-3436477-A // Automatic dialer // Robert J. Ghiringhelli // Western Union Telegraph Co | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Apr 01, 1969 00:00 | US-3436477-A // Automatic dialer // Robert J. Ghiringhelli // Western Union Telegraph Co | ||||
| PDF File 3422350.pdf | 364 kB | Shaun Ewing | Jan 14, 1969 00:00 |
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US-3422350-A // Waveguide section sliding wall carrying detector probe // Harry J. Goonan // Western Union Telegraph Co | |||
| Version 1 (current) | 364 kB | Shaun Ewing | Jan 14, 1969 00:00 | US-3422350-A // Waveguide section sliding wall carrying detector probe // Harry J. Goonan // Western Union Telegraph Co | ||||
| PDF File 3411021.pdf | 418 kB | Shaun Ewing | Nov 12, 1968 00:00 |
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US-3411021-A // Line driver for modifying lengths of polar signals // Elich John // Western Union Telegraph Co | |||
| Version 1 (current) | 418 kB | Shaun Ewing | Nov 12, 1968 00:00 | US-3411021-A // Line driver for modifying lengths of polar signals // Elich John // Western Union Telegraph Co | ||||
| PDF File 3404338.pdf | 3.88 MB | Shaun Ewing | Oct 01, 1968 00:00 |
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US-3404338-A // Method and means for measuring and correcting delay and attenuation in a transmission channel // Cannon William D. // Western Union Telegraph Co | |||
| Version 1 (current) | 3.88 MB | Shaun Ewing | Oct 01, 1968 00:00 | US-3404338-A // Method and means for measuring and correcting delay and attenuation in a transmission channel // Cannon William D. // Western Union Telegraph Co | ||||
| PDF File 3400801.pdf | 394 kB | Shaun Ewing | Sept 10, 1968 00:00 |
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US-3400801-A // Reusable inking cartridge // Swenson Oscar W. // Western Union Telegraph Co | |||
| Version 1 (current) | 394 kB | Shaun Ewing | Sept 10, 1968 00:00 | US-3400801-A // Reusable inking cartridge // Swenson Oscar W. // Western Union Telegraph Co | ||||
| PDF File 3400329.pdf | 3.24 MB | Shaun Ewing | Sept 03, 1968 00:00 |
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US-3400329-A // Method and means for correcting amplitude and delay distortion in a transmission path // Cannon William D. // Western Union Telegraph Co | |||
| Version 1 (current) | 3.24 MB | Shaun Ewing | Sept 03, 1968 00:00 | US-3400329-A // Method and means for correcting amplitude and delay distortion in a transmission path // Cannon William D. // Western Union Telegraph Co |
