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Patents for Martin H. Olsen
Patents 1 - 8 of 8
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
639,293Dec. 19, 1899H. RitterSight Feed Oil Cup
1,110,879Sep. 15, 1914W.R. BrownCalipers
1,157,890Oct. 26, 1915J. MiotkeSaw Sharpening Machine
1,336,754Apr. 13, 1920R. ParmeleeVise
1,336,755Apr. 13, 1920R. ParmeleeVise
D57,044Feb. 01, 1921C.H. Miller, J.E. HollisonDental Die Device
1,371,679Mar. 15, 1921J.L. HappySpeed Wrench
1,527,772Feb. 24, 1925C.M. BairdFireman's Spanner
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