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All Patents in class 144/34.1
Patents 31 - 33 of 33
First set of recordsPrevious set of recordsLast set of records
NumberDatePatenteeTitleType
2,444,138Jun. 29, 1948A.W. MallAdjustable tension chain saw machinehandheld chainsaws
3,348,592Oct. 24, 1967R.W. Wagner, R.A. WinbladTimber Harvesting Machinetree felling machines
3,516,462Jun. 23, 1970E.O. Martinson, P.A. HuffakerApparatus for harvesting treestree felling machines
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