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Patents for Bridgeport Hardware Mfg. Co.
Patents 16 - 24 of 24
First set of recordsPrevious set of recordsLast set of records
NumberDatePatenteeTitleType
1,755,822Apr. 22, 1930W.F. HobbsScrew Driver and Method of Making the Samescrewdriver handles
1,770,899Jul. 22, 1930J.A. AndersonValve Spring Liftervalve spring tools
1,782,981Nov. 25, 1930J.A. AndersonImprovement in Screwdriver bladesscrewdriver blades
1,809,450Jun. 09, 1931A.I. PlattWrench Kit Holderwrench set holders
1,830,663Nov. 03, 1931J.A. Anderson, A.E. KeatingHatchet, Hammer, or Similar Toolhatchets
1,888,222Nov. 22, 1932A.E. Keating, H.B. CurtisScrew Driverscrewdrivers
D97,325Oct. 29, 1935H.B. CurtisWrenchnut wrenches
2,123,393Jul. 12, 1938J.F. WindsorTool Handlescrewdriver handles
2,507,231May 09, 1950L.D. Tomalis, administratrix, J.J. Tomalis, estate of (deceased)Screw Driver Having Cruciform Bitscrewdriver blades
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