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Patents for Charles S. Hall
Patents 1 - 4 of 4
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
33,751Nov. 19, 1861L.H. OlmstedImprovement in oilers
D4,629Feb. 07, 1871C.S. HallDesign for a show-card
117,410Jul. 25, 1871C.S. HallImprovement in concaves for thrashing-machines
120,582Nov. 07, 1871C.S. HallImprovement in grain-separators
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