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| Patents for W. C. Hauff | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 367,596 | Aug. 02, 1887 | J. Clark | Pipe Wrench | |
 | 377,668 | Feb. 07, 1888 | J. Clark | Pipe Wrench | |
| 651,287 | Jun. 05, 1900 | W.H. Williams | Veneer-slicing machine | ||
 | 941,901 | Nov. 30, 1909 | E. Zinn | Tool Handle | |