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 1814248.pdf | 1.53 MB | Shaun Ewing | Jul 14, 1931 00:00 |
|
US-1814248-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.53 MB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814248-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc | ||||
| PDF File 2220942.pdf | 1.53 MB | Shaun Ewing | Nov 12, 1940 00:00 |
|
US-2220942-A // Acoustic device // Morrison Louis A. ; Mott Edward E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.53 MB | Shaun Ewing | Nov 12, 1940 00:00 | US-2220942-A // Acoustic device // Morrison Louis A. ; Mott Edward E. // Bell Telephone Labor Inc | ||||
| PDF File 2027197.pdf | 1.53 MB | Shaun Ewing | Jan 07, 1936 00:00 |
|
US-2027197-A // Trunk circuit // Powell Albert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.53 MB | Shaun Ewing | Jan 07, 1936 00:00 | US-2027197-A // Trunk circuit // Powell Albert C. // Bell Telephone Labor Inc | ||||
| PDF File 1859885.pdf | 1.53 MB | Shaun Ewing | May 24, 1932 00:00 |
|
US-1859885-A // Telephone system // Paine Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.53 MB | Shaun Ewing | May 24, 1932 00:00 | US-1859885-A // Telephone system // Paine Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 2180950.pdf | 1.52 MB | Shaun Ewing | Nov 21, 1939 00:00 |
|
US-2180950-A // Guided wave transmission // Bowen Arnold E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.52 MB | Shaun Ewing | Nov 21, 1939 00:00 | US-2180950-A // Guided wave transmission // Bowen Arnold E. // Bell Telephone Labor Inc | ||||
| PDF File 2010644.pdf | 1.52 MB | Shaun Ewing | Aug 06, 1935 00:00 |
|
US-2010644-A // Signal transmission line // Rienstra Albert R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.52 MB | Shaun Ewing | Aug 06, 1935 00:00 | US-2010644-A // Signal transmission line // Rienstra Albert R. // Bell Telephone Labor Inc | ||||
| PDF File 2024608.pdf | 1.52 MB | Shaun Ewing | Dec 17, 1935 00:00 |
|
US-2024608-A // Sound and picture system // Smythe Edwin H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.52 MB | Shaun Ewing | Dec 17, 1935 00:00 | US-2024608-A // Sound and picture system // Smythe Edwin H. // Bell Telephone Labor Inc | ||||
| PDF File 2039015.pdf | 1.52 MB | Shaun Ewing | Apr 28, 1936 00:00 |
|
US-2039015-A // Telephone system // Matthies William H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.52 MB | Shaun Ewing | Apr 28, 1936 00:00 | US-2039015-A // Telephone system // Matthies William H. // Bell Telephone Labor Inc | ||||
| PDF File 2131365.pdf | 1.51 MB | Shaun Ewing | Sept 27, 1938 00:00 |
|
US-2131365-A // Wave translation system // Black Harold S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Sept 27, 1938 00:00 | US-2131365-A // Wave translation system // Black Harold S. // Bell Telephone Labor Inc | ||||
| PDF File 2169842.pdf | 1.51 MB | Shaun Ewing | Aug 15, 1939 00:00 |
|
US-2169842-A // Electronic organ // Kannenberg Walter F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169842-A // Electronic organ // Kannenberg Walter F. // Bell Telephone Labor Inc | ||||
| PDF File 1832308.pdf | 1.51 MB | Shaun Ewing | Nov 17, 1931 00:00 |
|
US-1832308-A // Interpolating system // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832308-A // Interpolating system // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 1905662.pdf | 1.51 MB | Shaun Ewing | Apr 25, 1933 00:00 |
|
US-1905662-A // Telephone system // Ulrich Horace W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Apr 25, 1933 00:00 | US-1905662-A // Telephone system // Ulrich Horace W. // Bell Telephone Labor Inc | ||||
| PDF File 2106352.pdf | 1.51 MB | Shaun Ewing | Jan 25, 1938 00:00 |
|
US-2106352-A // Teletypewriter station // Kinkead Fullerton S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Jan 25, 1938 00:00 | US-2106352-A // Teletypewriter station // Kinkead Fullerton S. // Bell Telephone Labor Inc | ||||
| PDF File 2163431.pdf | 1.50 MB | Shaun Ewing | Jun 20, 1939 00:00 |
|
US-2163431-A // Printing telegraph exchange system // Kinkead Fullerton S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.50 MB | Shaun Ewing | Jun 20, 1939 00:00 | US-2163431-A // Printing telegraph exchange system // Kinkead Fullerton S. // Bell Telephone Labor Inc | ||||
| PDF File 1804786.pdf | 1.49 MB | Shaun Ewing | May 12, 1931 00:00 |
|
US-1804786-A // Telephone testing system // Kuhn Walter // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.49 MB | Shaun Ewing | May 12, 1931 00:00 | US-1804786-A // Telephone testing system // Kuhn Walter // Bell Telephone Labor Inc | ||||
| PDF File 1922602.pdf | 1.49 MB | Shaun Ewing | Aug 15, 1933 00:00 |
|
US-1922602-A // Volume control circuits // Norman Nathaniel C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.49 MB | Shaun Ewing | Aug 15, 1933 00:00 | US-1922602-A // Volume control circuits // Norman Nathaniel C. // Bell Telephone Labor Inc | ||||
| PDF File 1830220.pdf | 1.49 MB | Shaun Ewing | Nov 03, 1931 00:00 |
|
US-1830220-A // Transmission control // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.49 MB | Shaun Ewing | Nov 03, 1931 00:00 | US-1830220-A // Transmission control // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 2170403.pdf | 1.49 MB | Shaun Ewing | Aug 22, 1939 00:00 |
|
US-2170403-A // Telephone system // Goddard Myron C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.49 MB | Shaun Ewing | Aug 22, 1939 00:00 | US-2170403-A // Telephone system // Goddard Myron C. // Bell Telephone Labor Inc | ||||
| PDF File 2014223.pdf | 1.48 MB | Shaun Ewing | Sept 10, 1935 00:00 |
|
US-2014223-A // Circuit for controlling transmission in signaling systems // Bjornson Bjorn G. ; Greenwood Quentin E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.48 MB | Shaun Ewing | Sept 10, 1935 00:00 | US-2014223-A // Circuit for controlling transmission in signaling systems // Bjornson Bjorn G. ; Greenwood Quentin E. // Bell Telephone Labor Inc | ||||
| PDF File 1952579.pdf | 1.48 MB | Shaun Ewing | Mar 27, 1934 00:00 |
|
US-1952579-A // Wave translating system // Black Knox C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.48 MB | Shaun Ewing | Mar 27, 1934 00:00 | US-1952579-A // Wave translating system // Black Knox C. // Bell Telephone Labor Inc |
