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Retractable scarifier
US 3,274,712 A
Filed
: 04/16/1964
Issued
: 09/27/1966
Est. Priority Date
: 04/16/1964
Status: Expired due to Term
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Current Assignee
Dwight C. Jones
Original Assignee
Dwight C. Jones
Inventors
Jones, Dwight C.
Application Number
US04/360,234
Time in Patent Office
894 Days
Field of Search
US Class Current
172/197
CPC Class Codes
E02F 3/7604
Combinations of scraper bla...
E02F 3/7622
Scraper equipment with the ...
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