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Joint cleaning and filling machine
US 3,020,813 A
Filed
: 07/23/1956
Issued
: 02/13/1962
Est. Priority Date
: 07/23/1956
Status: Expired due to Term
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Current Assignee
Charles P. Gross
Original Assignee
Charles P. Gross
Inventors
Gross, Charles P.
Application Number
US03/599,594
Time in Patent Office
2,031 Days
Field of Search
US Class Current
404/107
CPC Class Codes
E01C 23/096
for forming, opening-out, c...
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