File:Patent for a Quick-break switch US1289623.pdf
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| Description |
English: UNITED STATES PATENT OFFICE.
BORNETT L. BOBROFF, OF MILWAUKEE, WISCONSIN. QUICK-BREAK SWITCH. 1,289,623. Specification of Letters Patent. Patented Dec. 31, 1918. Application filed June 18, 1917. Serial No. 175,322. |
| Date | |
| Source |
UNITED STATES PATENT OFFICE. BORNETT L. BOBROFF, OF MILWAUKEE, WISCONSIN. QUICK-BREAK SWITCH. 1,289,623. Specification of Letters Patent. Patented Dec. 31, 1918. Application filed June 18, 1917. Serial No. 175,322. https://patentimages.storage.googleapis.com/7a/24/3a/65901ce1362123/US1289623.pdf |
| Author | Bornett L. Bobroff (15 Sep 1882 - 27 Dec 1945) |
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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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| current | 02:07, 27 February 2024 |  | 1,158 × 1,702, 3 pages (331 KB) | Bayoustarwatch | Uploaded a work by BORNETT L. BOBROFF from UNITED STATES PATENT OFFICE. BORNETT L. BOBROFF, OF MILWAUKEE, WISCONSIN. QUICK-BREAK SWITCH. 1,289,623. Specification of Letters Patent. Patented Dec. 31, 1918. Application filed June 18, 1917. Serial No. 175,322. https://patentimages.storage.googleapis.com/7a/24/3a/65901ce1362123/US1289623.pdf with UploadWizard |
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