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TUBULAR STRUCTURAL MEMBER
US 3,508,587 A
Filed
: 09/29/1966
Issued
: 04/28/1970
Est. Priority Date
: 09/29/1966
Status: Expired due to Term
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Current Assignee
Minnesota Mining and Manufacturing Co
(3M Company)
Original Assignee
Hans A. Mauch
Inventors
Mauch, Hans A.
Application Number
US04/584,325
Time in Patent Office
1,307 Days
Field of Search
US Class Current
138/119
CPC Class Codes
F16L 11/121
specially profiled cross se...
Y10S 215/90
Collapsible wall structure
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