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Patents for Charles R. Pratt | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 1,446,062 | Feb. 20, 1923 | C.R. Pratt | Chuck | |
1,446,063 | Feb. 20, 1923 | C.R. Pratt | Chuck | ||
1,446,065 | Feb. 20, 1923 | C.R. Pratt | Chuck |