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公开(公告)号：US2241955A
公开(公告)日：1941-05-13
申请号：US34581640
申请日：1940-07-16
Applicant: WICKWIRE SPENCER STEEL COMPANY
Inventor： NOYER ALVIN L , ALEXANDER MCEACHERN
IPC: D07B1/06
CPC classification number: D07B1/14 , D07B1/0673 , D07B2201/1036 , D07B2201/2073 , D07B2401/207
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