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公开(公告)号:US2811426A
公开(公告)日:1957-10-29
申请号:US48978955
申请日:1955-02-21
Applicant: ALUMINUM CO OF AMERICA
Inventor: MASON RALPH B
IPC: C23C22/66
CPC classification number: C23C22/66
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公开(公告)号:US2809107A
公开(公告)日:1957-10-08
申请号:US39979153
申请日:1953-12-22
Applicant: ALUMINUM CO OF AMERICA
Inventor: RUSSELL ALLEN S
CPC classification number: C22B9/02 , C22B21/06 , Y02P10/234
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公开(公告)号:US2798604A
公开(公告)日:1957-07-09
申请号:US57966256
申请日:1956-04-20
Applicant: ALUMINUM CO OF AMERICA
Inventor: TODD GEORGE B
IPC: B21C23/08
CPC classification number: B21C23/08
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公开(公告)号:US2796456A
公开(公告)日:1957-06-18
申请号:US48675855
申请日:1955-02-08
Applicant: ALUMINUM CO OF AMERICA
Inventor: STOKES JR JOHN J
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公开(公告)号:US2796334A
公开(公告)日:1957-06-18
申请号:US49013055
申请日:1955-02-23
Applicant: ALUMINUM CO OF AMERICA
Inventor: ROBINSON DONALD L
IPC: C23F1/20
CPC classification number: C23F1/20
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公开(公告)号:US2789074A
公开(公告)日:1957-04-16
申请号:US40976954
申请日:1954-02-11
Applicant: ALUMINUM CO OF AMERICA
Inventor: MILLER MIKE A
IPC: B23K35/36
CPC classification number: B23K35/3603
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公开(公告)号:US2784126A
公开(公告)日:1957-03-05
申请号:US35050153
申请日:1953-04-22
Applicant: ALUMINUM CO OF AMERICA
Inventor: CRINER CHARLES B
IPC: C22C21/12
CPC classification number: C22C21/12
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138.Direct current metering system including an a. c. watthour meter 失效
Title translation: 直流计量系统,包括a。 C。 电度表公开(公告)号:US2759151A
公开(公告)日:1956-08-14
申请号:US20311350
申请日:1950-12-28
Applicant: ALUMINUM CO OF AMERICA
Inventor: WAGNER ROBERT N
IPC: G01R19/20
CPC classification number: G01R19/20
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公开(公告)号:US2754220A
公开(公告)日:1956-07-10
申请号:US32333952
申请日:1952-11-29
Applicant: ALUMINUM CO OF AMERICA
Inventor: GARDNER GEORGE R
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公开(公告)号:US2749239A
公开(公告)日:1956-06-05
申请号:US49426455
申请日:1955-03-14
Applicant: ALUMINUM CO OF AMERICA
Inventor: SICHA WALTER E , HUNSICKER HAROLD Y , LEMON ROBERT C
IPC: C22C21/16
CPC classification number: C22C21/16
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