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公开(公告)号:US2643804A
公开(公告)日:1953-06-30
申请号:US5800648
申请日:1948-11-02
Applicant: STALEY MFG CO A E
Inventor: AMOS SCRANTON NORMAN , ANDREW WHITE MATHIAS
公开(公告)号:US2643804A
公开(公告)日:1953-06-30
申请号:US5800648
申请日:1948-11-02
Applicant: STALEY MFG CO A E
Inventor: AMOS SCRANTON NORMAN , ANDREW WHITE MATHIAS