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| All Patents of Type: motor lubrication | |||||
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| Number | Date | Patentee | Title | Type | |
| 622,247 | Apr. 04, 1899 | C.R. Meston | Lubricated bearing | motor bearings | |
| 947,529 | Jan. 25, 1910 | C.R. Meston | Lubricating bearings | motor bearings | |
| 1,017,132 | Feb. 13, 1912 | J. Burke | Self-oiling bearing | motor bearings | |
| 1,037,217 | Sep. 03, 1912 | F. Diehl | Lubricating device | motor lubrication | |