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Patents for Chester O. Holland | |||||
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Picture | Number | Date | Patentee | Title | |
1,942,927 | Jan. 09, 1934 | C.O. Holland, A.M. Johnson | Hydraulically actuated indexing mechanism | ||
2,255,583 | Sep. 09, 1941 | C.O. Holland | Honing machine | ||
2,279,462 | Apr. 14, 1942 | R.T. Brokaw, C.O. Holland, E.F. Lundeen | Combined drilling and tapping machine |