Name Size Creator Creation Date Labels Comment  
PDF File 1580850.pdf 307 kB Shaun Ewing Apr 13, 1926 00:00
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US-1580850-A // Electron-discharge device // Otis Russell M. ; Funk Wilbur F. // Bell Telephone Labor Inc
PDF File 1578634.pdf 231 kB Shaun Ewing Mar 30, 1926 00:00
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US-1578634-A // Clamping and supporting device // Borgmann Charles // Bell Telephone Labor Inc
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