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| Patents for Gustavus H. Zschech | |||||
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| Number | Title | Classification(s) | |||
| 249,721 | Saw-guide | 273/129R, 83/828, 83/829 | |||
| 250,034 | Head-block for saw-mills | 83/727 | |||
| 250,472 | Wheel for saw-mill carriages | 83/707 | |||
| 262,551 | Bearing for circular-saw shafts | 83/433, 83/469 | |||
| 266,003 | Saw-mill feed mechanism | 476/67, 83/426 | |||
| 284,703 | Belt-tightener | 144/129, 474/133, 74/525 | |||
| 356,220 | Saw-catcher for band-saw mills | 83/814 | |||