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公开(公告)号:US1932849A
公开(公告)日:1933-10-31
申请号:US63416732
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:US1920262A
公开(公告)日:1933-08-01
申请号:US62434532
申请日:1932-07-23
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:US1908023A
公开(公告)日:1933-05-09
申请号:US46357630
申请日:1930-06-24
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W
IPC: C22C21/02
CPC classification number: C22C21/02
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公开(公告)号:US2076570A
公开(公告)日:1937-04-13
申请号:US5654435
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 , Y10S411/90 , Y10S411/914
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公开(公告)号:US2047873A
公开(公告)日:1936-07-14
申请号:US5266735
申请日:1935-12-03
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:US2026575A
公开(公告)日:1936-01-07
申请号:US1962635
申请日:1935-05-03
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:US2026573A
公开(公告)日:1936-01-07
申请号:US1962435
申请日:1935-05-03
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:US2026572A
公开(公告)日:1936-01-07
申请号:US1962335
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:US2026571A
公开(公告)日:1936-01-07
申请号:US1962235
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:US2026555A
公开(公告)日:1936-01-07
申请号:US1960635
申请日:1935-05-03
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DEAN WALTER A
IPC: C22C21/00
CPC classification number: C22C21/003
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