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| Patents for Charles B. Harris | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,166,804 | Jan. 04, 1916 | G. Amborn | Bar Holder for Lathes | lathe tool holders and tool posts | |
| 1,169,594 | Jan. 25, 1916 | G. Amborn | Tool Holder | lathe tool holders and tool posts | |
| 1,171,164 | Feb. 08, 1916 | G. Amborn | Threading and Other Tool | ||
| 1,239,459 | Sep. 11, 1917 | A.F. Carew | Tool and Tool Holder | metalworking machine tool holders | |