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Patent Date:
Patents Granted on 1831-03-19
Patents 1 - 2 of 2
Number
Date
Patentee
Title
Type
6,425X
Mar. 19, 1831
J.C. Earl
Truss
6,426X
Mar. 19, 1831
J. Trull, J.W. Shulz
Construction of lamps
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