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| All Patents of Type: plastic molding machines | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,460,468 | Feb. 01, 1949 | W.S. Renier | Molding Machine for Plastics and Other Moldable Materials | plastic molding machines | |
| 2,565,522 | Aug. 28, 1951 | W.S. Renier | Molding Machine | plastic molding machines | |
| 2,750,628 | Jun. 19, 1956 | W.S. Renier | Heating Unit for Plastic Molding Machines | plastic molding machines | |