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All Patents in class 356/242.1
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
901,879Oct. 20, 1908L. Chronik, A. ChronikThread Counting Apparatusthread counting apparatus
970,795Sep. 20, 1910L. Chronik, A. ChronikThread Counting Apparatusthread counting apparatus
1,740,970Dec. 24, 1929L. Chronik, A. ChronikThread Counting Apparatusthread counting apparatus
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