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| Patents for John E. Hassler | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,326,854 | Aug. 17, 1943 | J.E. Hassler | Method and means for sawing wood | other wood sawing machines | |
| RE24,129 | Mar. 13, 1956 | J.E. Hassler | Cutting chain for saws | other wood sawing machines | |