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All Patents of Type: optician
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
703,725Jul. 01, 1902F. HardingeDiopter gageoptician
878,507Feb. 11, 1908J.M. CoghlanOpticians Measuring Instrumentoptician
1,151,635Aug. 31, 1915A.T. WebbDiopter gageoptician
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