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Patents for Christian Black | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 516,182 | Mar. 13, 1894 | C. Black | Wrench | |
![]() | CA-46,266 | Jun. 06, 1894 | C. Black | Wrench | |
![]() | 546,295 | Sep. 17, 1895 | C. Black | Improvements in Sliding-Jaw Wrenches |