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Patent number:
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Patents for J. W. Cochran
Patents 1 - 2 of 2
Number
Date
Patentee
Title
Type
9,531X
Mar. 23, 1836
J.W. Cochran
Cannon vent
cannons
9,532X
Mar. 23, 1836
J.W. Cochran
Cannon vent
cannons
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