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Grooved and internally reinforced pipe end
US 2,821,415 A
Filed
: 04/09/1953
Issued
: 01/28/1958
Est. Priority Date
: 04/09/1953
Status: Expired due to Term
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Current Assignee
Austin T. Race Jr
Original Assignee
Austin T. Race Jr
Inventors
Race, Austin T. Jr.
Application Number
US03/347,663
Time in Patent Office
1,755 Days
Field of Search
US Class Current
285/112
CPC Class Codes
F16L 17/04
with longitudinally split o...
Y10T 29/49929
Joined to rod
Y10T 29/49945
by driven force fit
Y10T 29/49972
with separating, localizing...
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