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| Patents for Irma Baetzel | |||||
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| Number | Date | Patentee | Title | Type | |
| 863,460 | Aug. 13, 1907 | R.P. Smith, G.E. Drum | Dyeing-machine | specialty machines | |
| 917,026 | Apr. 06, 1909 | G.E. Drum, R.P. Smith | Reversing mechanism for dyeing-machines | specialty machines | |
| 973,487 | Oct. 25, 1910 | J.H. Skitt, G.E. Drum | Dyeing-machine | specialty machines | |