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| All Patents in class 134/8 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 622,047 | Mar. 28, 1899 | H.C. Holden | Internal Combustion Engine | ||
| 2,998,333 | Aug. 29, 1961 | E.J. Kielma, A.H. Fotsch | Machine Tool for Removing Material from a Container | ||
| 3,104,989 | Sep. 24, 1963 | H.W. Kippers, R.K. Sedgwick | Machine Tool for Removing a Mass of Material from a Container and Method | ||