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