File:Patent for a Switch construction for signaling systems US1872395.pdf
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current | 05:07, 4 March 2024 | ![]() | 1,158 × 1,702, 8 pages (970 KB) | Bayoustarwatch | Uploaded a work by Bornett L. Bobroff (15 Sep 1882 - 27 Dec 1945) from Patented Aug. 16, 1932 1,872,395 UNITED STATES PATENT OFFICE BORNETT L. BOBROFF, OF RACINE, WISCONSIN SWITCH CONSTRUCTION FOR SIGNALING SYSTEMS Application filed November 6, 1929. Serial No. 405,105. https://patentimages.storage.googleapis.com/b2/dd/17/79616af10ba8ad/US1872395.pdf with UploadWizard |
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