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| All Patents in class 384/469 | |||||
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| Number | Date | Patentee | Title | Type | |
| 947,529 | Jan. 25, 1910 | C.R. Meston | Lubricating bearings | motor bearings | |
| 1,499,949 | Jul. 01, 1924 | W.N. Sawyer | Spindle-lubricating means | woodworking machine lubrication | |
| 1,859,068 | May 17, 1932 | C.H. Beach | Electric Grinder | ||
| 1,924,189 | Aug. 29, 1933 | W.H. Hall | Lubricating device for anti-friction spindle bearing | woodworking machine mechanisms | |