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| Patents for Thomas B. Tiefenbacher | |||||
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| Picture | Number | Date | Patentee | Title | |
| 721,979 | Mar. 03, 1903 | T.B. Tiefenbacher | Tool Holder for Lathes | ||
| 1,647,590 | Nov. 01, 1927 | T.B. Tiefenbacher | Boring Tool Holder | ||
| 2,035,999 | Mar. 31, 1936 | T.B. Tiefenbacher | Tool Holder | ||
| 2,136,091 | Nov. 08, 1938 | T.B. Tiefenbacher | Tool Holder | ||