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Reinforced molded cone
US 2,974,684 A
Filed
: 11/25/1955
Issued
: 03/14/1961
Est. Priority Date
: 11/25/1955
Status: Expired due to Term
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Current Assignee
Marvin E. Ginaven
,
Maurice D. Woodruff
Original Assignee
Marvin E. Ginaven
,
Maurice D. Woodruff
Inventors
Ginaven, Marvin E.
,
Woodruff, Maurice D.
Application Number
US03/548,921
Time in Patent Office
1,936 Days
Field of Search
US Class Current
285/148.23
CPC Class Codes
B04B 7/085
fibre- or metal-reinforced
B04C 5/085
with wear-resisting arrange...
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