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All Patents in class 474/156
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,356,437Aug. 22, 1944D.J. SmithChain saw constructionhandheld chainsaws
2,409,775Oct. 22, 1946A.W. MallChain-saw machinehandheld chainsaws
3,391,863Jul. 09, 1968R.W. Morner, H.W. HuffmanData card punching device
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