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Patents Granted on 1792-03-??
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
41XMar. 07, 1792D. RidgewayMaking Bricksbrick maker
42XMar. 28, 1792S. GreenCanvas conductor to be used when houses are on firefire hoses
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