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| Patents Granted on 1967-08-15 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,335,525 | Aug. 15, 1967 | A.A. Muehling | Hydraulic system for grinding machines | ||
| 3,335,527 | Aug. 15, 1967 | D.H. Sabine | Sharpening apparatus for cutting tools | sharpening machines | |
| 3,336,551 | Aug. 15, 1967 | C. Stead | Magnetic Chucks | magnetic chucks | |