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All Patents of Type: oil or grease fittings | |||||
Number | Date | Patentee | Title | Type | |
608,243 | Aug. 02, 1898 | F.D. Winkley | Oil-hole cover or cap | oil or grease fittings | |
608,244 | Aug. 02, 1898 | F.D. Winkley | Oil-hole cover or cap | oil or grease fittings | |
642,860 | Feb. 06, 1900 | F.D. Winkley | Oil-hole cover or cap | oil or grease fittings | |
1,175,496 | Mar. 14, 1916 | O. Zerk | Lubricating-bolt | oil or grease fittings | |
1,423,112 | Jul. 18, 1922 | F.O. Hoagland | Oil Cup | oil or grease fittings |