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| All Patents in class 277/408 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,037,647 | Sep. 03, 1912 | W.J. London | Steam Turbine Packing Gland | steam turbines | |
| 1,070,087 | Aug. 12, 1913 | J.H. Van Deventer | Metallic Packing | steam engine packing | |
| 2,712,459 | Jul. 05, 1955 | E.C. Wahl | High Speed Shaft Seal | shaft seals | |
| 3,093,381 | Jun. 11, 1963 | G. Schultz | Shaft Seal | shaft seals | |
| 4,434,986 | Mar. 06, 1984 | D.J. Warner | Shaft Seal | shaft seals | |