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Patents for Alexander Watson
Patents 1 - 3 of 3
First set of recordsLast set of records
6,927Dec. 04, 1849A. StivenImprovement in pumps for raising waterrotary pumps
403,627May 21, 1889A. WatsonAdjustable work-rest for bencheswork holding
441,522Nov. 25, 1890A. WatsonThreshold Gagespecial purpose gauges
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