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| Patents for Wilhelm Hengenscheidt Gesellschft m.b.H. | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,895,057 | Jan. 23, 1990 | H. Wolters, H.W. Obrig, G. Berstein | Machine Tool For Broaching Crankshaft Connecting Rod Bearings | broaching machines | |