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All Patents in class 144/34.1
Patents 31 - 32 of 32
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NumberDatePatenteeTitleType
2,444,138Jun. 29, 1948A.W. MallAdjustable tension chain saw machinehandheld chainsaws
3,516,462Jun. 23, 1970P.A. Huffaker, E.O. MartinsonApparatus for harvesting treestree felling machines
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