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| Patents for Ionia Shingle-Machine Mfg. Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 76,691 | Apr. 14, 1868 | J.E. Austin | Improvement in shingle machines | shingle machines | |
| 82,067 | Sep. 15, 1868 | J.E. Austin | Improvement in shingle-machines | shingle machines | |
| 105,540 | Jul. 19, 1870 | J.E. Austin | Improvement in shingle-machines | shingle machines | |
| 171,338 | Dec. 21, 1875 | J.E. Austin | Improvement in machines for edging shingles | circular saws | |