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公开(公告)号:US2026564A
公开(公告)日:1936-01-07
申请号:US1961535
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:US2026545A
公开(公告)日:1936-01-07
申请号:US68988333
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:US2026543A
公开(公告)日:1936-01-07
申请号:US68988133
申请日:1933-09-18
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:US1944183A
公开(公告)日:1934-01-23
申请号:US61502832
申请日:1932-06-02
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , DAWSON IVAN R
IPC: C22C21/02
CPC classification number: C22C21/02
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公开(公告)号:US1932873A
公开(公告)日:1933-10-31
申请号:US64513032
申请日:1932-11-30
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:US1932851A
公开(公告)日:1933-10-31
申请号:US63416932
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:US1932843A
公开(公告)日:1933-10-31
申请号:US63416132
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:US1879748A
公开(公告)日:1932-09-27
申请号:US42106030
申请日:1930-01-15
Applicant: ALUMINUM CO OF AMERICA
Inventor: HORSFIELD BASIL T , KEMPF LOUIS W , FINK WILLIAM L
IPC: C22C21/02
CPC classification number: C22C21/02
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公开(公告)号:US1799837A
公开(公告)日:1931-04-07
申请号:US32804628
申请日:1928-12-22
Applicant: ALUMINUM CO OF AMERICA
Inventor: ARCHER ROBERT S , KEMPF LOUIS W
IPC: C22C21/02
CPC classification number: C22C21/02
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公开(公告)号:US2452855A
公开(公告)日:1948-11-02
申请号:US47141443
申请日:1943-01-06
Applicant: ALUMINUM CO OF AMERICA
Inventor: KEMPF LOUIS W , EASTWOOD LA VERNE W
IPC: B22C9/26
CPC classification number: B22C9/26
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