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| Patents for A. Hoermann | |||||
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| Number | Date | Patentee | Title | Type | |
| 107,943 | Oct. 04, 1870 | J. More | Improvement in cutter-heads for planers | cutterheads | |
| 111,087 | Jan. 17, 1871 | A.K. Rider | Hot Air Engine | hot air engines | |
| 122,248 | Dec. 26, 1871 | D.A. Greene | Reciprocating Engines | steam engines | |