File:Patent for a Switch for signaling systems US1775585.pdf
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current | 01:12, 3 March 2024 | ![]() | 1,158 × 1,702, 8 pages (840 KB) | Bayoustarwatch | Uploaded a work by Bornett L. Bobroff (15 Sep 1882 - 27 Dec 1945) from Patented Sept. 9, 1930 1,775,585 UNITED STATES PATENT OFFICE BORNETT L. BOBROFF, OF RACINE, WISCONSIN SWITCH FOR SIGNALING SYSTEMS Application filed July 31, 1929. Serial No. 382,322. https://patentimages.storage.googleapis.com/66/2c/3d/987e88948f8a57/US1775585.pdf with UploadWizard |
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