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Patents Granted on 1921-01-18
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
D56,945Jan. 18, 1921P. PiotrowskiWrenchwrenches
1,365,779Jan. 18, 1921T.E. GroveIndicating Caliperscalipers
1,365,975Jan. 18, 1921W.F. FolmerLoading Device for Cut Filmsphotographic developing apparatus
1,365,991Jan. 18, 1921A.H. HeldenCombined Fixed-Angle Square and Protractorbevels
1,366,334Jan. 18, 1921F.N. WhitesellDischarge Gate for Storage Receptaclesconveyors and hoppers
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