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Patents for Benjamin F. Cummins
Patents 1 - 2 of 2
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
475,440May 24, 1892J. Stenwall, Jr., B.F. CumminsPerforating, dating, and receipting stamp
486,858Nov. 29, 1892B.F. CumminsPerforating-stamp
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