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Patents for Harry Jeffrey
Patents 1 - 4 of 4
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
873,437Dec. 10, 1907H. JeffreyWrench
RE12,854Sep. 15, 1908H. JeffreyWrench
916,951Mar. 30, 1909H. JeffreyWrench
916,952Mar. 30, 1909H. JeffreyWrench
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