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| All Patents in class 425/532 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,222,717 | Dec. 14, 1965 | R.P. Hyland, S. Saslawsky | Blow molding system | blow molding machines | |
| 3,344,470 | Oct. 03, 1967 | R.A. Hufford | Simultaneously Closing Blow Molding Machine | blow molding machines | |