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All Patents in class 33/428
Patents 1 - 14 of 14
First set of recordsLast set of records
NumberDatePatenteeTitleType
82,917Oct. 13, 1868G.W. BrooksCentering Squarecenter squares
89,625May 04, 1869W.H. BrockImprovement in adjustable centre-squarecenter marking gauges
229,283Jun. 29, 1880L.S. StarrettTry Squarecenter squares
249,821Nov. 22, 1881S.H. BellowsCombination Squarecenter squares
477,959Jun. 28, 1892J.B. PriceCenter & Key Seating Rulecenter marking gauges
535,223Mar. 05, 1895W.S. RowellMeasuring and Drawing Instrumentcenter squares
567,869Sep. 15, 1896G.W. SnyderCombined Rule & Try Squaretry squares
587,453Aug. 03, 1897G.W. ReedTry and center squaretry squares
686,891Nov. 19, 1901W.A. DunbarCenter Squarecenter marking gauges
694,774Mar. 04, 1902K.O. MuehlbergCenter Squarecenter marking gauges
738,422Sep. 08, 1903A. DuffyMachinist's Try Squaretry squares
769,992Sep. 13, 1904G.M. EngelCombined Center or Other Squarespecial purpose gauges
1,429,793Sep. 19, 1922E.T. StraussCenter-Finding Instrumentcenter squares
2,085,461Jun. 29, 1937J.S. ChafeeCombination Rule and Slidable Headtry squares
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