| Patents for Bridgeport Hardware Mfg. Co. |
Patents 1 -
15
of 24
      |
| Number | Date | Patentee | Title | Type |
| 708,841 | Sep. 09, 1902 | E.N. Sperry | Nail-extractor | nail extractors |
| 809,803 | Jan. 09, 1906 | W.F. Hobbs | Nail Puller | nail extractors |
| 809,804 | Jan. 09, 1906 | W.F. Hobbs | Container Punch | ticket |
| 900,016 | Sep. 29, 1908 | W.F. Hobbs | Nail Puller | hammers |
| 1,071,618 | Aug. 26, 1913 | W.F. Hobbs | Hercules Screwdriver | screwdriver handles |
| 1,082,952 | Dec. 30, 1913 | W.F. Hobbs | Combined Nail Puller and Scraper | combination tools |
| 1,112,798 | Oct. 06, 1914 | W.F. Hobbs | Handle Fastening | tool handles |
| 1,129,310 | Feb. 23, 1915 | A.I. Platt | Paper Carton Opener | knives and cutters |
| 1,330,542 | Feb. 10, 1920 | H.W. Kulp | Valve Spring Lifter | valve spring tools |
| 1,333,966 | Mar. 16, 1920 | W.B. Fay | Lifting Jack | valve spring tools |
| 1,608,176 | Nov. 23, 1926 | J.A. Anderson, W.F. Hobbs | Valve Lifting Tool | valve spring tools |
| 1,614,300 | Jan. 11, 1927 | J.A. Anderson, W.F. Hobbs | Valve Lifting Tool | valve spring tools |
| 1,614,301 | Jan. 11, 1927 | W.F. Hobbs | Compound Lever Valve Spring Lifter | valve spring tools |
| 1,738,405 | Dec. 03, 1929 | B. Thal | Improvement in Screwdriver blades | screwdriver blades |
| 1,741,349 | Dec. 31, 1929 | R.R. Sullivan | Improvement in Screwdriver blades | screwdriver blades |
