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| Patents for John R. Mason | |||||
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| Picture | Number | Date | Patentee | Title | |
| 166,538 | Aug. 10, 1875 | J.R. Mason | Chucks and Centerers | ||
| 172,086 | Jan. 11, 1876 | J.W. Byther | Improvement in stave-jointing machines | ||
 | 178,850 | Jun. 20, 1876 | G.W. Herring | Improvement in machines for sawing staves and laths | |
 | 216,344 | Jun. 10, 1879 | B.F. Penney | Improvement in shingle-sawing machines | |
 | 425,371 | Apr. 08, 1890 | A.J. Curtis | Pipe Wrench | |