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| Patents for Pray Mfg. Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 295,991 | Apr. 01, 1884 | C. Esplin | Circular-saw mill | circular sawmills | |
| 336,631 | Feb. 23, 1886 | C. Esplin | Nose-guard for saw-mill head-blocks | sawmill headblocks | |
| 339,539 | Apr. 06, 1886 | C. Esplin | Bandsaw mill | band sawmills | |
| 340,943 | Apr. 27, 1886 | C. Esplin | Bandsaw mill | ||
| 341,376 | May 04, 1886 | C. Esplin | Band-saw mill | band sawmills | |
| 344,366 | Jun. 29, 1886 | C. Esplin | Saw-mill set-works | sawmill set works | |