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All Patents in class 33/369
Patents 1 - 9 of 9
First set of recordsLast set of records
31,987Apr. 09, 1861R.B. LightMachinist's Squaresquares
73,391Jan. 14, 1868H. SchüsslerChain-Inclinometerinclinometers
341,378May 04, 1886W.E. GwyerSpirit Level for Boring Bitslevels
371,294Oct. 11, 1887G. WoodsPlumb Level for Boring Bitslevels
691,631Jan. 21, 1902J.H. JacksonSpirit Levelline levels
1,000,512Aug. 15, 1911I.L. GriswoldLine Levelline levels
1,369,652Feb. 22, 1921F.B. HallOctagon Line & Surface Levelline levels
1,716,744Jun. 11, 1929A.L. StowellLine levelline levels
2,014,709Sep. 17, 1935F.A. VolzLine Levelline levels
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