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Patents for Williamsport Saw Works
Patents 1 - 11 of 11
First set of recordsLast set of records
NumberDatePatenteeTitleType
51,126Nov. 28, 1865E. AndrewsImprovement in sawmillsreciprocating sawmills
76,969Apr. 21, 1868E. AndrewsImprovement in mode of hanging reciprocating saws in sawmillsreciprocating sawmills
85,417Dec. 29, 1868E. AndrewsImprovement in sawsreciprocating saws
90,623May 25, 1869E. AndrewsImprovement in strap for sawsreciprocating saws
95,869Oct. 19, 1869E. AndrewsImprovement in saw-swagesaw swages
101,343Mar. 29, 1870E. AndrewsImprovement in saw-millsreciprocating sawmills
111,164Jan. 24, 1871E. AndrewsImprovement in sawssaw teeth
112,883Mar. 21, 1871E. AndrewsImprovement in saw-millsreciprocating sawmills
154,821Sep. 08, 1874E. AndrewsImprovement in saw-hangersreciprocating sawmills
156,748Nov. 10, 1874E. AndrewsImprovement in circular sawssawblades
369,222Aug. 30, 1887E. AndrewsSaw-toothinsertable saw teeth
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