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| Patents for Joseph O. Olsen | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,765,733 | Jun. 24, 1930 | J.O. Olsen | Power-driven saw | |
 | 2,072,951 | Mar. 09, 1937 | J.O. Olsen, C. Johnson | Abrading machine | |
 | 2,220,268 | Nov. 05, 1940 | J.O. Olsen | Machine tool | |
| 2,403,546 | Jul. 09, 1946 | J.O. Olsen | Method and apparatus for honing | ||