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Patent number:
Patent Date:
Patents Granted on 1808-09-21
Patents 1 - 2 of 2
Number
Date
Patentee
Title
Type
937X
Sep. 21, 1808
M.B. Parmelee
Ratchet wheel
938X
Sep. 21, 1808
M.B. Parmelee
Ratchet wheel
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