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Original file (1,158 × 1,702 pixels, file size: 970 KB, MIME type: application/pdf, 8 pages)

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Description
English: 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.
Date
Source

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
Author Bornett L. Bobroff (15 Sep 1882 - 27 Dec 1945)

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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.

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