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Summary
| Description |
English: UNITED STATES PATENT OFFICE.
BORNETT L. BOBROFF, OF MILWAUKEE, WISCONSIN. SYSTEM FOR SIGNALING. 1,367,583.Specification of Letters Patent. Patented Feb. 8, 1921. Application filed April 2, 1918. Serial No. 226,189. |
| Date | |
| Source |
UNITED STATES PATENT OFFICE. BORNETT L. BOBROFF, OF MILWAUKEE, WISCONSIN. SYSTEM FOR SIGNALING. 1,367,583.Specification of Letters Patent. Patented Feb. 8, 1921.Application filed April 2, 1918. Serial No. 226,189. https://patentimages.storage.googleapis.com/34/fb/03/2860964f842a92/US1367583.pdf |
| Author | Bornett L. Bobroff (15 Sep 1882 - 27 Dec 1945) |
Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 02:29, 27 February 2024 |  | 1,158 × 1,702, 7 pages (733 KB) | Bayoustarwatch | Uploaded a work by BORNETT L. BOBROFF from UNITED STATES PATENT OFFICE. BORNETT L. BOBROFF, OF MILWAUKEE, WISCONSIN. SYSTEM FOR SIGNALING. 1,367,583.Specification of Letters Patent. Patented Feb. 8, 1921.Application filed April 2, 1918. Serial No. 226,189. https://patentimages.storage.googleapis.com/34/fb/03/2860964f842a92/US1367583.pdf with UploadWizard |
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