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| All Patents in class 294/100 | |||||
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| Number | Date | Patentee | Title | Type | |
| 333,452 | Dec. 29, 1885 | T.S. Disston | Post Hole Digger | ||
| 855,280 | May 28, 1907 | V.E. Campbell | Interchangeable and Adjustable Screw Driver and Combined Tool Holder | tool holders | |
| 2,207,649 | Jul. 09, 1940 | S. Ackal, J.H. Williams | Oil Well Fishing Tool | ||
| 4,173,368 | Nov. 06, 1979 | P.J. Haverbusch | Apparatus for Frictionally Gripping the Interior Surface of a Container During Handling by an Article Transferring Means | material gripping machines | |