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Process for expanding preheated tubular bodies
US 2,728,373 A
Filed
: 07/22/1952
Issued
: 12/27/1955
Est. Priority Date
: 08/04/1951
Status: Expired due to Term
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Current Assignee
Adolf Zimpel
Original Assignee
Adolf Zimpel
Inventors
ADOLF ZIMPEL
Application Number
US03/300,270
Time in Patent Office
1,253 Days
Field of Search
US Class Current
72/316
CPC Class Codes
B21D 41/02
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