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Patents Granted on 1931-03-10
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,795,310Mar. 10, 1931W.E. MathewsCompressor Unloaderair compressors
1,795,313Mar. 10, 1931J.D. NiesElectric-motor supportelectric motors
1,795,667Mar. 10, 1931S.J. MorganSwinging-door operator
1,795,919Mar. 10, 1931W. Wolff, E. WolffPortable power hack sawmetal sawing machines
1,796,054Mar. 10, 1931C.I. ShawverWoodworking machinemolders
1,796,083Mar. 10, 1931A.E. CarlbergWrenchsocket wrenches
1,796,186Mar. 10, 1931L.E. Blood, P.H. YoungChip breakerwood planers
1,796,227Mar. 10, 1931K.E. VellingClapboard and Trim Markerclapboard markers
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