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| Patents for Charles F. Simmons | |||||
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| Number | Date | Patentee | Title | Type | |
| 333,418 | Dec. 29, 1885 | E.F. Lindsey | Counterboring Attachment for Bits | countersinks | |
| 1,655,280 | Jan. 03, 1928 | R.H. Engel, C.F. Simmons, H.R. Merseles, H.E. Merseles | Dishwashing machine | ||