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| Patents Granted on 1972-10-10 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,696,834 | Oct. 10, 1972 | W. Vonhoff, Jr. | Fluid control device | ||
| 3,697,403 | Oct. 10, 1972 | L.V. Colwell | Electrochemical grinding apparatus | ||