Unable to load page tree. It seems that you do not have permission to view the root page.
Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1745415.pdf | 492 kB | Shaun Ewing | Feb 04, 1930 00:00 |
|
US-1745415-A // Carrier amplitude control system // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 492 kB | Shaun Ewing | Feb 04, 1930 00:00 | US-1745415-A // Carrier amplitude control system // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1745376.pdf | 274 kB | Shaun Ewing | Feb 04, 1930 00:00 |
|
US-1745376-A // Short-wave radioreceiver // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 274 kB | Shaun Ewing | Feb 04, 1930 00:00 | US-1745376-A // Short-wave radioreceiver // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1745369.pdf | 239 kB | Shaun Ewing | Feb 04, 1930 00:00 |
|
US-1745369-A // Unipotential-cathode vacuum tube // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 239 kB | Shaun Ewing | Feb 04, 1930 00:00 | US-1745369-A // Unipotential-cathode vacuum tube // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1744918.pdf | 341 kB | Shaun Ewing | Jan 28, 1930 00:00 |
|
US-1744918-A // Telephone system // Phelps Henry E. ; Jr. John Davidson, // American Telephone & Telegraph | |||
| Version 1 (current) | 341 kB | Shaun Ewing | Jan 28, 1930 00:00 | US-1744918-A // Telephone system // Phelps Henry E. ; Jr. John Davidson, // American Telephone & Telegraph | ||||
| PDF File 1744887.pdf | 189 kB | Shaun Ewing | Jan 28, 1930 00:00 |
|
US-1744887-A // Device for introducing gas into cables // Gruene William J. // American Telephone & Telegraph | |||
| Version 1 (current) | 189 kB | Shaun Ewing | Jan 28, 1930 00:00 | US-1744887-A // Device for introducing gas into cables // Gruene William J. // American Telephone & Telegraph | ||||
| PDF File 1744840.pdf | 280 kB | Shaun Ewing | Jan 28, 1930 00:00 |
|
US-1744840-A // Voltage-indicating and translating device // Strieby Maurice E. ; Fetter Charles H. // American Telephone & Telegraph | |||
| Version 1 (current) | 280 kB | Shaun Ewing | Jan 28, 1930 00:00 | US-1744840-A // Voltage-indicating and translating device // Strieby Maurice E. ; Fetter Charles H. // American Telephone & Telegraph | ||||
| PDF File 1744836.pdf | 499 kB | Shaun Ewing | Jan 28, 1930 00:00 |
|
US-1744836-A // Carrier-amplitude control in radio systems // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 499 kB | Shaun Ewing | Jan 28, 1930 00:00 | US-1744836-A // Carrier-amplitude control in radio systems // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1744835.pdf | 346 kB | Shaun Ewing | Jan 28, 1930 00:00 |
|
US-1744835-A // Constant-frequency oscillator // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 346 kB | Shaun Ewing | Jan 28, 1930 00:00 | US-1744835-A // Constant-frequency oscillator // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1744063.pdf | 642 kB | Shaun Ewing | Jan 21, 1930 00:00 |
|
US-1744063-A // Bridge duplex telegraph system // Wilburn Sidney D. // American Telephone & Telegraph | |||
| Version 1 (current) | 642 kB | Shaun Ewing | Jan 21, 1930 00:00 | US-1744063-A // Bridge duplex telegraph system // Wilburn Sidney D. // American Telephone & Telegraph | ||||
| PDF File 1744058.pdf | 272 kB | Shaun Ewing | Jan 21, 1930 00:00 |
|
US-1744058-A // Electrical protective system // Shetzline Roy A. // American Telephone & Telegraph | |||
| Version 1 (current) | 272 kB | Shaun Ewing | Jan 21, 1930 00:00 | US-1744058-A // Electrical protective system // Shetzline Roy A. // American Telephone & Telegraph | ||||
| PDF File 1744053.pdf | 666 kB | Shaun Ewing | Jan 21, 1930 00:00 |
|
US-1744053-A // Signaling system // Miller Charles G. // American Telephone & Telegraph | |||
| Version 1 (current) | 666 kB | Shaun Ewing | Jan 21, 1930 00:00 | US-1744053-A // Signaling system // Miller Charles G. // American Telephone & Telegraph | ||||
| PDF File 1744044.pdf | 320 kB | Shaun Ewing | Jan 21, 1930 00:00 |
|
US-1744044-A // Single-side-band carrier system // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 320 kB | Shaun Ewing | Jan 21, 1930 00:00 | US-1744044-A // Single-side-band carrier system // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1744031.pdf | 420 kB | Shaun Ewing | Jan 21, 1930 00:00 |
|
US-1744031-A // Measurement of active-balance components // Abraham Leonard G. // American Telephone & Telegraph | |||
| Version 1 (current) | 420 kB | Shaun Ewing | Jan 21, 1930 00:00 | US-1744031-A // Measurement of active-balance components // Abraham Leonard G. // American Telephone & Telegraph | ||||
| PDF File 1743588.pdf | 1.22 MB | Shaun Ewing | Jan 14, 1930 00:00 |
|
US-1743588-A // Carrier transmission system for printing telegraphy // Affel Herman A. ; Hamilton Baxter P. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.22 MB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743588-A // Carrier transmission system for printing telegraphy // Affel Herman A. ; Hamilton Baxter P. // American Telephone & Telegraph | ||||
| PDF File 1743260.pdf | 1.05 MB | Shaun Ewing | Jan 14, 1930 00:00 |
|
US-1743260-A // Means and method for maintaining constant transmission efficiency // Zinn Manvel K. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.05 MB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743260-A // Means and method for maintaining constant transmission efficiency // Zinn Manvel K. // American Telephone & Telegraph | ||||
| PDF File 1743245.pdf | 535 kB | Shaun Ewing | Jan 14, 1930 00:00 |
|
US-1743245-A // Apparatus for spraying liquids // Smith Temple C. // American Telephone & Telegraph | |||
| Version 1 (current) | 535 kB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743245-A // Apparatus for spraying liquids // Smith Temple C. // American Telephone & Telegraph | ||||
| PDF File 1743180.pdf | 828 kB | Shaun Ewing | Jan 14, 1930 00:00 |
|
US-1743180-A // Picture-transmitting system // Abraham Leonard G. // American Telephone & Telegraph | |||
| Version 1 (current) | 828 kB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743180-A // Picture-transmitting system // Abraham Leonard G. // American Telephone & Telegraph | ||||
| PDF File 1743141.pdf | 1.20 MB | Shaun Ewing | Jan 14, 1930 00:00 |
|
US-1743141-A // Equalization of carrier systems // Ilgenfritz Lester M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.20 MB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743141-A // Equalization of carrier systems // Ilgenfritz Lester M. // American Telephone & Telegraph | ||||
| PDF File 1743132.pdf | 1.21 MB | Shaun Ewing | Jan 14, 1930 00:00 |
|
US-1743132-A // Equalization of carrier systems // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.21 MB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743132-A // Equalization of carrier systems // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1742927.pdf | 652 kB | Shaun Ewing | Jan 07, 1930 00:00 |
|
US-1742927-A // Telephone-exchange system // Nicoll Robert I.d. ; Davis Richard C. ; Nostitz Erich Von // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Jan 07, 1930 00:00 | US-1742927-A // Telephone-exchange system // Nicoll Robert I.d. ; Davis Richard C. ; Nostitz Erich Von // Bell Telephone Labor Inc ; American Telephone & Telegraph |
