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| Patents for Edward W. Schatzman | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,192,802 | Jul. 06, 1965 | E.W. Schatzman | Torque control mechanism | drill presses | |
| 3,283,618 | Nov. 08, 1966 | E.W. Schatzman | Torque controlled machine tool | drill presses | |
| 3,816,016 | Jun. 11, 1974 | E.W. Schatzman | Power drilling machine with resistance triggered retraction | drill presses | |