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Patents Granted on 1984-11-20 | |||||
Number | Date | Patentee | Title | Type | |
4,483,402 | Nov. 20, 1984 | W. Vonhoff, Jr. | Paving breaker | ||
4,483,415 | Nov. 20, 1984 | H.C. Disston, Jr., T.J. Eichfeld | Folding stepladder |