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 1841097.pdf | 516 kB | Shaun Ewing | Jan 12, 1932 00:00 |
|
US-1841097-A // Heat treatment of conductors // Elmen Gustaf W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 516 kB | Shaun Ewing | Jan 12, 1932 00:00 | US-1841097-A // Heat treatment of conductors // Elmen Gustaf W. // Bell Telephone Labor Inc | ||||
| PDF File 1841101.pdf | 479 kB | Shaun Ewing | Jan 12, 1932 00:00 |
|
US-1841101-A // Loud speaker // Flanders Paul B. ; Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 479 kB | Shaun Ewing | Jan 12, 1932 00:00 | US-1841101-A // Loud speaker // Flanders Paul B. ; Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 1841120.pdf | 332 kB | Shaun Ewing | Jan 12, 1932 00:00 |
|
US-1841120-A // Slow acting relay // Hibbard Frank H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 332 kB | Shaun Ewing | Jan 12, 1932 00:00 | US-1841120-A // Slow acting relay // Hibbard Frank H. // Bell Telephone Labor Inc | ||||
| PDF File 1841123.pdf | 1.80 MB | Shaun Ewing | Jan 12, 1932 00:00 |
|
US-1841123-A // Telephone exchange system // Hovland Henry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.80 MB | Shaun Ewing | Jan 12, 1932 00:00 | US-1841123-A // Telephone exchange system // Hovland Henry // Bell Telephone Labor Inc | ||||
| PDF File 1841125.pdf | 548 kB | Shaun Ewing | Jan 12, 1932 00:00 |
|
US-1841125-A // Coin collection apparatus // Hoyt Frederick A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Jan 12, 1932 00:00 | US-1841125-A // Coin collection apparatus // Hoyt Frederick A. // Bell Telephone Labor Inc | ||||
| PDF File 1841142.pdf | 1.13 MB | Shaun Ewing | Jan 12, 1932 00:00 |
|
US-1841142-A // Wave communication system // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Jan 12, 1932 00:00 | US-1841142-A // Wave communication system // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 1841197.pdf | 2.49 MB | Shaun Ewing | Jan 12, 1932 00:00 |
|
US-1841197-A // Telephone alarm system // Massonneau Robert F. ; Roberts Thomas H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.49 MB | Shaun Ewing | Jan 12, 1932 00:00 | US-1841197-A // Telephone alarm system // Massonneau Robert F. ; Roberts Thomas H. // Bell Telephone Labor Inc | ||||
| PDF File 1841394.pdf | 758 kB | Shaun Ewing | Jan 19, 1932 00:00 |
|
US-1841394-A // Circuit for space discharge devices // Bachelet Albert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 758 kB | Shaun Ewing | Jan 19, 1932 00:00 | US-1841394-A // Circuit for space discharge devices // Bachelet Albert E. // Bell Telephone Labor Inc | ||||
| PDF File 1841405.pdf | 1.00 MB | Shaun Ewing | Jan 19, 1932 00:00 |
|
US-1841405-A // Transmission control circuits // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.00 MB | Shaun Ewing | Jan 19, 1932 00:00 | US-1841405-A // Transmission control circuits // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 1841472.pdf | 276 kB | Shaun Ewing | Jan 19, 1932 00:00 |
|
US-1841472-A // Inductance device // Given Frederick J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 276 kB | Shaun Ewing | Jan 19, 1932 00:00 | US-1841472-A // Inductance device // Given Frederick J. // Bell Telephone Labor Inc | ||||
| PDF File 1841486.pdf | 406 kB | Shaun Ewing | Jan 19, 1932 00:00 |
|
US-1841486-A // Composite metallic strand // Legg Victor E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 406 kB | Shaun Ewing | Jan 19, 1932 00:00 | US-1841486-A // Composite metallic strand // Legg Victor E. // Bell Telephone Labor Inc | ||||
| PDF File 1841489.pdf | 437 kB | Shaun Ewing | Jan 19, 1932 00:00 |
|
US-1841489-A // Oscillation generator // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 437 kB | Shaun Ewing | Jan 19, 1932 00:00 | US-1841489-A // Oscillation generator // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1841504.pdf | 602 kB | Shaun Ewing | Jan 19, 1932 00:00 |
|
US-1841504-A // Circuit for electric discharge devices // Stoller Hugh M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 602 kB | Shaun Ewing | Jan 19, 1932 00:00 | US-1841504-A // Circuit for electric discharge devices // Stoller Hugh M. // Bell Telephone Labor Inc | ||||
| PDF File 1843910.pdf | 448 kB | Shaun Ewing | Feb 09, 1932 00:00 |
|
US-1843910-A // Tuning fork // Broadwell Howard // Bell Telephone Labor Inc | |||
| Version 1 (current) | 448 kB | Shaun Ewing | Feb 09, 1932 00:00 | US-1843910-A // Tuning fork // Broadwell Howard // Bell Telephone Labor Inc | ||||
| PDF File 1844108.pdf | 814 kB | Shaun Ewing | Feb 09, 1932 00:00 |
|
US-1844108-A // Method of manufacturing acoustic impedance elements // Smythe Edwin H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 814 kB | Shaun Ewing | Feb 09, 1932 00:00 | US-1844108-A // Method of manufacturing acoustic impedance elements // Smythe Edwin H. // Bell Telephone Labor Inc | ||||
| PDF File 1844110.pdf | 833 kB | Shaun Ewing | Feb 09, 1932 00:00 |
|
US-1844110-A // Determination of telephone quality // Steinberg John C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 833 kB | Shaun Ewing | Feb 09, 1932 00:00 | US-1844110-A // Determination of telephone quality // Steinberg John C. // Bell Telephone Labor Inc | ||||
| PDF File 1844111.pdf | 1.24 MB | Shaun Ewing | Feb 09, 1932 00:00 |
|
US-1844111-A // Telephone exchange system // Stokely Ray L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Feb 09, 1932 00:00 | US-1844111-A // Telephone exchange system // Stokely Ray L. // Bell Telephone Labor Inc | ||||
| PDF File 1844114.pdf | 562 kB | Shaun Ewing | Feb 09, 1932 00:00 |
|
US-1844114-A // Manufacture of continuously loaded conductors // Bishop Walter M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 562 kB | Shaun Ewing | Feb 09, 1932 00:00 | US-1844114-A // Manufacture of continuously loaded conductors // Bishop Walter M. // Bell Telephone Labor Inc | ||||
| PDF File 1844121.pdf | 354 kB | Shaun Ewing | Feb 09, 1932 00:00 |
|
US-1844121-A // Electromagnetic switching device // Hibbard Frank H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 354 kB | Shaun Ewing | Feb 09, 1932 00:00 | US-1844121-A // Electromagnetic switching device // Hibbard Frank H. // Bell Telephone Labor Inc | ||||
| PDF File 1844123.pdf | 137 kB | Shaun Ewing | Feb 09, 1932 00:00 |
|
US-1844123-A // Acoustic diaphragm // Holland Newman H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 137 kB | Shaun Ewing | Feb 09, 1932 00:00 | US-1844123-A // Acoustic diaphragm // Holland Newman H. // Bell Telephone Labor Inc |
