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| Patents for J. R. Massey | |||||
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| Number | Date | Patentee | Title | Type | |
| 262,977 | Aug. 22, 1882 | M.L. Orum | Lock-case | locks | |
| 367,436 | Aug. 02, 1887 | M.L. Orum | Mortise-lock | locks | |