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| Patents for Heller Brothers Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,634,908 | Jul. 05, 1927 | E.E. Lynch, H.A. Mead | Wrench | nut wrenches | |
| 1,767,468 | Jun. 24, 1930 | C.M. Logan | File machine | tool making machines | |