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| Patents for Earl E. Johnson | |||||
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| Number | Title | Classification(s) | |||
| 3,417,639 | Planetary Speed Change Transmission for Machine Tool Feed Drives | 475/279, 475/282 | |||
| 3,469,496 | Quill Support for Machine Tool Spindles | 384/99, 408/129, 409/135, 409/241 | |||
| 3,824,890 | Chip Guard for Machine Tools | 144/251.1, 408/241G, 408/710, 409/134, 451/451, 74/608 | |||
| 3,911,540 | Tool Interchange System With Break Away Shoes | 483/2, 483/59, 483/7 | |||
| 4,053,968 | Tool Support for Tool Interchange System | 211/1.53, 279/900, 29/26A, 483/56, 483/67 | |||