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| Patents for James T. Ludlow | |||||
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| Number | Date | Patentee | Title | Type | |
| 632,356 | Sep. 05, 1899 | J.T. Ludlow | Cold-storage apparatus | refrigeration apparatus | |
| CA-65,216 | Dec. 05, 1899 | J.T. Ludlow | Rope tramway system | material handling | |
| 644,675 | Mar. 06, 1900 | J.T. Ludlow | Rope-tramway system | material handling | |
| 661,184 | Nov. 06, 1900 | J.T. Ludlow | Ammonia-compressor | refrigeration apparatus | |