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 1752429.pdf | 236 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752429-A // Telephone set // Fowler Clarence B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 236 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752429-A // Telephone set // Fowler Clarence B. // Bell Telephone Labor Inc | ||||
| PDF File 1743456.pdf | 235 kB | Shaun Ewing | Jan 14, 1930 00:00 |
|
US-1743456-A // Sound recording // Keith Clyde R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 235 kB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743456-A // Sound recording // Keith Clyde R. // Bell Telephone Labor Inc | ||||
| PDF File 1753330.pdf | 231 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753330-A // Metering device // Bragg Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 231 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753330-A // Metering device // Bragg Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 1578634.pdf | 231 kB | Shaun Ewing | Mar 30, 1926 00:00 |
|
US-1578634-A // Clamping and supporting device // Borgmann Charles // Bell Telephone Labor Inc | |||
| Version 1 (current) | 231 kB | Shaun Ewing | Mar 30, 1926 00:00 | US-1578634-A // Clamping and supporting device // Borgmann Charles // Bell Telephone Labor Inc | ||||
| PDF File 1647617.pdf | 231 kB | Shaun Ewing | Nov 01, 1927 00:00 |
|
US-1647617-A // Electron-discharge device // Griffith Thomas R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 231 kB | Shaun Ewing | Nov 01, 1927 00:00 | US-1647617-A // Electron-discharge device // Griffith Thomas R. // Bell Telephone Labor Inc | ||||
| PDF File 1658315.pdf | 228 kB | Shaun Ewing | Feb 07, 1928 00:00 |
|
US-1658315-A // Battery // Wheeler Edmund B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 228 kB | Shaun Ewing | Feb 07, 1928 00:00 | US-1658315-A // Battery // Wheeler Edmund B. // Bell Telephone Labor Inc | ||||
| PDF File 1695041.pdf | 228 kB | Shaun Ewing | Dec 11, 1928 00:00 |
|
US-1695041-A // Production of magnetic dust cores // Elmen Gustaf W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 228 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695041-A // Production of magnetic dust cores // Elmen Gustaf W. // Bell Telephone Labor Inc | ||||
| PDF File 1784844.pdf | 225 kB | Shaun Ewing | Dec 16, 1930 00:00 |
|
US-1784844-A // Constant frequency wave source // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 225 kB | Shaun Ewing | Dec 16, 1930 00:00 | US-1784844-A // Constant frequency wave source // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1668890.pdf | 225 kB | Shaun Ewing | May 08, 1928 00:00 |
|
US-1668890-A // Universal adjustable earpiece for audiphones // Curran Stanley T. ; Jr. Emil C. Mueller, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 225 kB | Shaun Ewing | May 08, 1928 00:00 | US-1668890-A // Universal adjustable earpiece for audiphones // Curran Stanley T. ; Jr. Emil C. Mueller, // Bell Telephone Labor Inc | ||||
| PDF File 1753331.pdf | 225 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753331-A // Constant-speed drive // Clokey Allison A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 225 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753331-A // Constant-speed drive // Clokey Allison A. // Bell Telephone Labor Inc | ||||
| PDF File 1747233.pdf | 224 kB | Shaun Ewing | Feb 18, 1930 00:00 |
|
US-1747233-A // Tuning dial // Gargan John O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 224 kB | Shaun Ewing | Feb 18, 1930 00:00 | US-1747233-A // Tuning dial // Gargan John O. // Bell Telephone Labor Inc | ||||
| PDF File 1751263.pdf | 224 kB | Shaun Ewing | Mar 18, 1930 00:00 |
|
US-1751263-A // Electrical switching system // Cesareo Orfeo // Bell Telephone Labor Inc | |||
| Version 1 (current) | 224 kB | Shaun Ewing | Mar 18, 1930 00:00 | US-1751263-A // Electrical switching system // Cesareo Orfeo // Bell Telephone Labor Inc | ||||
| PDF File 1733608.pdf | 224 kB | Shaun Ewing | Oct 29, 1929 00:00 |
|
US-1733608-A // Phonograph needle // Knox William G. ; Russell Alexander G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 224 kB | Shaun Ewing | Oct 29, 1929 00:00 | US-1733608-A // Phonograph needle // Knox William G. ; Russell Alexander G. // Bell Telephone Labor Inc | ||||
| PDF File 1711689.pdf | 223 kB | Shaun Ewing | May 07, 1929 00:00 |
|
US-1711689-A // Rotary mercury interrupter // Pierce Paul H. ; Means Winthrop J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 223 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711689-A // Rotary mercury interrupter // Pierce Paul H. ; Means Winthrop J. // Bell Telephone Labor Inc | ||||
| PDF File 1733607.pdf | 221 kB | Shaun Ewing | Oct 29, 1929 00:00 |
|
US-1733607-A // Combined recorder and reproducer // Keller Arthur C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 221 kB | Shaun Ewing | Oct 29, 1929 00:00 | US-1733607-A // Combined recorder and reproducer // Keller Arthur C. // Bell Telephone Labor Inc | ||||
| PDF File 1708939.pdf | 219 kB | Shaun Ewing | Apr 16, 1929 00:00 |
|
US-1708939-A // Electron-discharge device // Crawford Allen I. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 219 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1708939-A // Electron-discharge device // Crawford Allen I. // Bell Telephone Labor Inc | ||||
| PDF File 1722027.pdf | 219 kB | Shaun Ewing | Jul 23, 1929 00:00 |
|
US-1722027-A // Acoustic device // Wente Edward C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 219 kB | Shaun Ewing | Jul 23, 1929 00:00 | US-1722027-A // Acoustic device // Wente Edward C. // Bell Telephone Labor Inc | ||||
| PDF File 1708935.pdf | 213 kB | Shaun Ewing | Apr 16, 1929 00:00 |
|
US-1708935-A // Coil and transformer // Christopher Arthur J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 213 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1708935-A // Coil and transformer // Christopher Arthur J. // Bell Telephone Labor Inc | ||||
| PDF File 1763172.pdf | 208 kB | Shaun Ewing | Jun 10, 1930 00:00 |
|
US-1763172-A // Electro-polarized relay // Miller Ohmer R. ; Mead Edward D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 208 kB | Shaun Ewing | Jun 10, 1930 00:00 | US-1763172-A // Electro-polarized relay // Miller Ohmer R. ; Mead Edward D. // Bell Telephone Labor Inc | ||||
| PDF File 1773938.pdf | 205 kB | Shaun Ewing | Aug 26, 1930 00:00 |
|
US-1773938-A // Method of manufacturing loaded conductors // Bishop Walter M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 205 kB | Shaun Ewing | Aug 26, 1930 00:00 | US-1773938-A // Method of manufacturing loaded conductors // Bishop Walter M. // Bell Telephone Labor Inc |
