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公开(公告)号:US2026547A
公开(公告)日:1936-01-07
申请号:US68988633
申请日:1933-09-18
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:US1945737A
公开(公告)日:1934-02-06
申请号:US50427830
申请日:1930-12-23
Applicant: ALUMINUM CO OF AMERICA
Inventor: DIX JR EDGAR H , KEMPF LOUIS W
IPC: C22C21/06
CPC classification number: C22C21/06
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公开(公告)号:US1940133A
公开(公告)日:1933-12-19
申请号:US68246733
申请日:1933-07-27
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W
IPC: C22C21/12
CPC classification number: C22C21/12
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公开(公告)号:US1932852A
公开(公告)日:1933-10-31
申请号:US63417032
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:US1932850A
公开(公告)日:1933-10-31
申请号:US63416832
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:US1932845A
公开(公告)日:1933-10-31
申请号:US63416332
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:US1932838A
公开(公告)日:1933-10-31
申请号:US63415632
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:US1921195A
公开(公告)日:1933-08-08
申请号:US55075731
申请日:1931-07-14
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:US2286627A
公开(公告)日:1942-06-16
申请号:US42489441
申请日:1941-12-30
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DEAN WALTER A
IPC: C22C21/08
CPC classification number: C22C21/08
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公开(公告)号:US2076572A
公开(公告)日:1937-04-13
申请号:US5654635
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 , Y10S411/914
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