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Patents for Leslie S. Hubbert | |||||
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Picture | Number | Date | Patentee | Title | |
1,755,353 | Apr. 22, 1930 | L.S. Hubbert | Filter Pot Press | ||
1,778,803 | Oct. 21, 1930 | L.S. Hubbert | Hydraulic Plastic Press | ||
1,867,972 | Jul. 19, 1932 | C.J. Zube, L.S. Hubbert | Press for Manufacturing Molded Articles |