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| Patents for Robert H. Weisgerber | |||||
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| Picture | Number | Date | Patentee | Title | |
| 2,930,373 | Mar. 29, 1960 | R.H. Weisgerber, W.F. Jessup | Grinding Machine Truing Mechanism | ||
| 3,154,891 | Nov. 03, 1964 | R.H. Weisgerber | Apparatus for Grinding Flexible Cord | ||