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| All Patents in class 222/326 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,259,146 | Mar. 12, 1918 | F.W. Shields | Grease Gun | ||
| 1,268,654 | Jun. 04, 1918 | S.C. Baker, J.L. White | Grease Gun | ||
| 1,269,438 | Jun. 11, 1918 | A.H. Hieatzman | Grease Gun | ||
| 1,545,379 | Jul. 07, 1925 | F.D. Winkley | Dispensing apparatus | ||
 | 2,886,215 | May 12, 1959 | V.G. Klein, O.C. Lyles, J.R. Graef | Lubricant Gun | |
| 5,248,068 | Sep. 28, 1993 | S.R. Wente, N.C. Rittmann Gasperi, R.S. Goergen | Caulk Gun with Ergonomic Handles | ||