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All Patents in class 222/135 | |||||
Number | Date | Patentee | Title | Type | |
1,241,212 | Sep. 25, 1917 | C.L. Heisler | Powder Blending Apparatus | mixing machines | |
1,504,543 | Aug. 12, 1924 | E.R. Draver | Feeding agitator | ||
1,521,014 | Dec. 30, 1924 | E.R. Draver | Regulating device for percentage feeders | ||
5,248,068 | Sep. 28, 1993 | S.R. Wente, N.C. Rittmann Gasperi, R.S. Goergen | Caulk Gun with Ergonomic Handles |