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| Patents for Handy Manufacturing Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,321,174 | Jun. 08, 1943 | O. Bergstrom | Means of fabricating wall sections and the like | ||
| 2,623,560 | Dec. 30, 1952 | A.H. Joseph | Polygonal framework type clamping machine | clamps | |
| 2,796,095 | Jun. 18, 1957 | A.H. Joseph | Clamping machine with flexible band work engaging means | clamps | |