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| All Patents in class 92/5R | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,605,748 | Aug. 05, 1952 | J.E. Rasoletti | Adjustable abutment for pistons | drill presses | |
| 3,372,622 | Mar. 12, 1968 | E.P. Bullard, III | Multiple Pressure Responsive Control Apparatus | ||