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| Patents Granted on 1970-03-17 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,500,523 | Mar. 17, 1970 | A. Wasco, Jr., R.W. Cashman | Tool Holder Construction | insert tool holders | |
| 3,500,696 | Mar. 17, 1970 | W.A. Berube | Two-speed power tool | handheld power tools | |