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| Patents for Gesellschaft für Werkzeug-Industrie | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-190,226,218 | Sep. 24, 1903 | H. Scheffer | New and Useful Adjustable Screw-Key | self-adjust wrenches | |
| 741,841 | Oct. 20, 1903 | H. Scheffer | Wrench | self-adjust wrenches | |
| DE-149,498 | Mar. 11, 1904 | . | Rohrzange | pipe tongs | |