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Patent number:
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Patents for E. S. Rockafellar
Patents 1 - 2 of 2
Picture
Number
Date
Patentee
Title
664,361
Dec. 18, 1900
H.F. Renner
Pipe-vise
672,552
Apr. 23, 1901
J.P. Harrington
Shaft-upsetting hammer
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