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公开(公告)号：US2055771A
公开(公告)日：1936-09-29
申请号：US66669733
申请日：1933-04-18
Applicant: ALUMINUM CO OF AMERICA
Inventor： MCLAUGHLIN JOSEPH E
IPC: B21K1/06
CPC classification number: B21C37/202 , B21C1/22 , Y10T428/12354
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公开(公告)号：US2635738A
公开(公告)日：1953-04-21
申请号：US8839249
申请日：1949-04-19
Applicant: ALUMINUM CO OF AMERICA
Inventor： AVEY WILLIAM P , HERRINGTON HOWARD H , MEYER LAWRENCE W , MCLAUGHLIN JOSEPH E
IPC: B21C19/00
CPC classification number: B21C19/00
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公开(公告)号：US2644353A
公开(公告)日：1953-07-07
申请号：US6989549
申请日：1949-01-08
Applicant: ALUMINUM CO OF AMERICA
Inventor： MCLAUGHLIN JOSEPH E
CPC classification number: H01B13/0006 , B01D41/04 , B23K20/001 , Y10T29/49929 , Y10T29/5122 , Y10T29/53126 , Y10T29/532
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