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公开(公告)号:US1932848A
公开(公告)日:1933-10-31
申请号:US63416632
申请日:1932-09-21
Applicant: ALUMINUM CO OF AMERICA
Inventor: DEAN WALTER A , KEMPF LOUIS W
IPC: C22C21/06
CPC classification number: C22C21/06
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公开(公告)号:US1932842A
公开(公告)日:1933-10-31
申请号:US63416032
申请日:1932-09-21
Applicant: ALUMINUM CO OF AMERICA
Inventor: DEAN WALTER A , KEMPF LOUIS W
IPC: C22C21/06
CPC classification number: C22C21/06
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公开(公告)号:US2369354A
公开(公告)日:1945-02-13
申请号:US44614042
申请日:1942-06-06
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DEAN WALTER A
IPC: C22C21/00
CPC classification number: C22C21/00
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公开(公告)号:US2286626A
公开(公告)日:1942-06-16
申请号:US42489341
申请日:1941-12-30
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DEAN WALTER A
IPC: C22C21/10
CPC classification number: C22C21/10
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公开(公告)号:US2286624A
公开(公告)日:1942-06-16
申请号:US42489141
申请日:1941-12-30
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DEAN WALTER A
IPC: C22C21/06
CPC classification number: C22C21/06
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公开(公告)号:US2076578A
公开(公告)日:1937-04-13
申请号:US5655235
申请日:1935-12-28
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DEAN WALTER A
IPC: C22C21/00
CPC classification number: C22C21/003
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公开(公告)号:US2076576A
公开(公告)日:1937-04-13
申请号:US5655035
申请日:1935-12-28
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DEAN WALTER A
IPC: C22C21/00
CPC classification number: C22C21/003
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公开(公告)号:US2076571A
公开(公告)日:1937-04-13
申请号:US5654535
申请日:1935-12-28
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DEAN WALTER A
IPC: C22C21/00
CPC classification number: C22C21/003
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公开(公告)号:US2026570A
公开(公告)日:1936-01-07
申请号:US1962135
申请日:1935-05-03
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DEAN WALTER A
IPC: C22C21/02
CPC classification number: C22C21/02
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公开(公告)号:US2026566A
公开(公告)日:1936-01-07
申请号:US1961735
申请日:1935-05-03
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DEAN WALTER A
IPC: C22C21/02
CPC classification number: C22C21/02
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