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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1759000.pdf | 601 kB | Shaun Ewing | May 20, 1930 00:00 |
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US-1759000-A // Radio signaling system // Chapman Arthur G. // American Telephone & Telegraph | |||
| Version 1 (current) | 601 kB | Shaun Ewing | May 20, 1930 00:00 | US-1759000-A // Radio signaling system // Chapman Arthur G. // American Telephone & Telegraph | ||||
| PDF File 1758933.pdf | 777 kB | Shaun Ewing | May 20, 1930 00:00 |
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US-1758933-A // Transposed and tapered antenna // Chapman Arthur G. // American Telephone & Telegraph | |||
| Version 1 (current) | 777 kB | Shaun Ewing | May 20, 1930 00:00 | US-1758933-A // Transposed and tapered antenna // Chapman Arthur G. // American Telephone & Telegraph | ||||
| PDF File 1758058.pdf | 199 kB | Shaun Ewing | May 13, 1930 00:00 |
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US-1758058-A // High-frequency communication system // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 199 kB | Shaun Ewing | May 13, 1930 00:00 | US-1758058-A // High-frequency communication system // Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 1758044.pdf | 687 kB | Shaun Ewing | May 13, 1930 00:00 |
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US-1758044-A // Wave antenna // Hoyt Ray S. // American Telephone & Telegraph | |||
| Version 1 (current) | 687 kB | Shaun Ewing | May 13, 1930 00:00 | US-1758044-A // Wave antenna // Hoyt Ray S. // American Telephone & Telegraph | ||||
| PDF File 1758029.pdf | 355 kB | Shaun Ewing | May 13, 1930 00:00 |
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US-1758029-A // Pole planer // Cole Orange R. ; Garlinger Marshall T. // American Telephone & Telegraph | |||
| Version 1 (current) | 355 kB | Shaun Ewing | May 13, 1930 00:00 | US-1758029-A // Pole planer // Cole Orange R. ; Garlinger Marshall T. // American Telephone & Telegraph | ||||
| PDF File 1758025.pdf | 471 kB | Shaun Ewing | May 13, 1930 00:00 |
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US-1758025-A // Pole planer // Bolin Carleton H. // American Telephone & Telegraph | |||
| Version 1 (current) | 471 kB | Shaun Ewing | May 13, 1930 00:00 | US-1758025-A // Pole planer // Bolin Carleton H. // American Telephone & Telegraph | ||||
| PDF File 1757225.pdf | 628 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757225-A // Telegraph alarm circuit // Singer Fred J. // American Telephone & Telegraph | |||
| Version 1 (current) | 628 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757225-A // Telegraph alarm circuit // Singer Fred J. // American Telephone & Telegraph | ||||
| PDF File 1757217.pdf | 900 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757217-A // Telephone system // Rhodes William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 900 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757217-A // Telephone system // Rhodes William A. // American Telephone & Telegraph | ||||
| PDF File 1757181.pdf | 1.04 MB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757181-A // Privacy system for telephone transmission // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1.04 MB | Shaun Ewing | May 06, 1930 00:00 | US-1757181-A // Privacy system for telephone transmission // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1757173.pdf | 419 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757173-A // Combined cutter and pressure roller device // Dingman James E. ; Engelbert Robert F. // American Telephone & Telegraph | |||
| Version 1 (current) | 419 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757173-A // Combined cutter and pressure roller device // Dingman James E. ; Engelbert Robert F. // American Telephone & Telegraph | ||||
| PDF File 1756132.pdf | 533 kB | Shaun Ewing | Apr 29, 1930 00:00 |
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US-1756132-A // High-frequency-oscillation generator // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Apr 29, 1930 00:00 | US-1756132-A // High-frequency-oscillation generator // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1756131.pdf | 471 kB | Shaun Ewing | Apr 29, 1930 00:00 |
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US-1756131-A // High-frequency-oscillation generator // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 471 kB | Shaun Ewing | Apr 29, 1930 00:00 | US-1756131-A // High-frequency-oscillation generator // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1756130.pdf | 391 kB | Shaun Ewing | Apr 29, 1930 00:00 |
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US-1756130-A // Oscillation generator // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 391 kB | Shaun Ewing | Apr 29, 1930 00:00 | US-1756130-A // Oscillation generator // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1756102.pdf | 447 kB | Shaun Ewing | Apr 29, 1930 00:00 |
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US-1756102-A // Telephone system // Rosekrans Wilfred M. // American Telephone & Telegraph | |||
| Version 1 (current) | 447 kB | Shaun Ewing | Apr 29, 1930 00:00 | US-1756102-A // Telephone system // Rosekrans Wilfred M. // American Telephone & Telegraph | ||||
| PDF File 1756097.pdf | 375 kB | Shaun Ewing | Apr 29, 1930 00:00 |
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US-1756097-A // Electrical delay-circuit arrangement // Niles Eliot W. ; Edwards William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 375 kB | Shaun Ewing | Apr 29, 1930 00:00 | US-1756097-A // Electrical delay-circuit arrangement // Niles Eliot W. ; Edwards William H. // American Telephone & Telegraph | ||||
| PDF File 1755266.pdf | 339 kB | Shaun Ewing | Apr 22, 1930 00:00 |
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US-1755266-A // Tuned radio frequency amplifier // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 339 kB | Shaun Ewing | Apr 22, 1930 00:00 | US-1755266-A // Tuned radio frequency amplifier // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1755258.pdf | 366 kB | Shaun Ewing | Apr 22, 1930 00:00 |
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US-1755258-A // Battery-charging circuits // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 366 kB | Shaun Ewing | Apr 22, 1930 00:00 | US-1755258-A // Battery-charging circuits // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1755257.pdf | 278 kB | Shaun Ewing | Apr 22, 1930 00:00 |
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US-1755257-A // Vacuum tube and method of preparing the same // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 278 kB | Shaun Ewing | Apr 22, 1930 00:00 | US-1755257-A // Vacuum tube and method of preparing the same // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1755244.pdf | 313 kB | Shaun Ewing | Apr 22, 1930 00:00 |
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US-1755244-A // Device for measuring level differences // Dietze Eginhard // American Telephone & Telegraph | |||
| Version 1 (current) | 313 kB | Shaun Ewing | Apr 22, 1930 00:00 | US-1755244-A // Device for measuring level differences // Dietze Eginhard // American Telephone & Telegraph | ||||
| PDF File 1755243.pdf | 554 kB | Shaun Ewing | Apr 22, 1930 00:00 |
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US-1755243-A // Signaling means for telephone systems // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Apr 22, 1930 00:00 | US-1755243-A // Signaling means for telephone systems // Crisson George // American Telephone & Telegraph |
