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Patents for Harry J. Tapper
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
D115,882Jul. 25, 1939G.F. Morrison, H.J. TapperDesign for a typographical trimming machineprinter
2,195,557Apr. 02, 1940F.W. Billker, H.J. TapperAngle gaugeprinter
2,224,335Dec. 10, 1940F.W. Billker, H.J. TapperSlug resurfacerprinter
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