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File:Patent for a Hostital indicator US1921149.pdf

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English: Patented Aug. 8, 1933 1,921,149

UNITED STATES PATENT OFFICE 1,921,149 HOSPITAL INDICATOR Bornett L. Bobroff, Milwaukee, Wis. Application June 15, 1928. Serial No. 285,695 8 Claims.

(Cl. 177-329)
Date
Source

Patented Aug. 8, 1933 1,921,149 UNITED STATES PATENT OFFICE 1,921,149 HOSPITAL INDICATOR Bornett L. Bobroff, Milwaukee, Wis. Application June 15, 1928. Serial No. 285,695 8 Claims. (Cl. 177-329)

https://patentimages.storage.googleapis.com/19/49/6e/a7c04c41e3d1a2/US1921149.pdf
Author Bornett L. Bobroff (15 Sep 1882 - 27 Dec 1945)

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Patented Aug. 8, 1933 1,921,149 UNITED STATES PATENT OFFICE 1,921,149 HOSPITAL INDICATOR Bornett L. Bobroff, Milwaukee, Wis. Application June 15, 1928. Serial No. 285,695 8 Claims. (Cl. 177-329)

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