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| Patents for H. E. Mudra | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 568,395 | Sep. 29, 1896 | M.A. Yeakley | Pneumatic hammer | |
 | 586,832 | Jul. 20, 1897 | J.G. Oliver, G.C. Bardons | Friction-clutch | |
 | 605,614 | Jun. 14, 1898 | L.H. Sholder | Combined Auger and Cutter | |