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| All Patents in class 277/516 | |||||
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| Number | Date | Patentee | Title | Type | |
| 860,049 | Jul. 16, 1907 | J.L. Moore | Shaft Packing for Steam Turbines | steam turbines | |
| 2,045,024 | Jun. 23, 1936 | F.P. Thieman, H.J. Renken | Pump | piston pumps | |
| 2,267,183 | Dec. 23, 1941 | G.H. Williams | Stuffing Box | oil well pumps | |