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公开(公告)号:US1932847A
公开(公告)日:1933-10-31
申请号:US63416532
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:US1932846A
公开(公告)日:1933-10-31
申请号:US63416432
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:US1932844A
公开(公告)日:1933-10-31
申请号:US63416232
申请日:1932-09-21
Applicant: ALUMINUM CO OF AMERICA
Inventor: DEAN WALTER A , KEMPF LOUIS W
IPC: C22C21/12
CPC classification number: C22C21/12
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公开(公告)号:US1932841A
公开(公告)日:1933-10-31
申请号:US63415932
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:US1932840A
公开(公告)日:1933-10-31
申请号:US63415832
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:US1932839A
公开(公告)日:1933-10-31
申请号:US63415732
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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