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Patents for D. H. Aaronson | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 204,929 | Jun. 18, 1878 | J.J. White | Belt Shifting Pulley | |
![]() | 241,839 | May 24, 1881 | J.J. White | File and rasp cutting machine |