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Patents for Robert G. Frazer
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
NF-9Aug. 08, 1854R.G. FrazerNew mode of manufacturing oil from whale, seal and other fish and of separating the fibrous matter from the oil
NF-11Jul. 26, 1856R.G. FrazerNew method for preventing the soakage and leakage or coloring of oils in casks or other wooden vessels
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