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| Patents for Charles J. Bowman | |||||
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| Picture | Number | Date | Patentee | Title | |
| 3,067,337 | Dec. 04, 1962 | C.J. Bowman | Servo Amplifier Using Push-Pull Complementary Cascafed Transistors with Means to Superimpose a Higher A. C. Frequency on Information Signal | ||
| 3,302,336 | Feb. 07, 1967 | C.J. Bowman | Workpiece Support for Grinding Machine | ||