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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| 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 3581120.pdf | 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 | |||
| 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 3619649.pdf | 300 kB | Shaun Ewing | Nov 09, 1971 00:00 |
|
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 3624294.pdf | 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 | |||
| 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 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 3660606.pdf | 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 | |||
| 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 3663760.pdf | 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 | |||
| 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 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 |
