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Patents Granted on 1931-12-15
Patents 1 - 4 of 4
First set of recordsLast set of records
DE-540,411Dec. 15, 1931S.E. Co.Cam Valve Controlvalves
1,836,367Dec. 15, 1931A.N. EmmonsAbrading roller constructionsanding machines
1,836,496Dec. 15, 1931E.H. PercySaw mill log carriage machinerysawmill dogs
1,837,174Dec. 15, 1931G.A. Highberg, H.E. SloanChuckmetal lathe chucks
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