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公开(公告)号:US2728004A
公开(公告)日:1955-12-20
申请号:US6025448
申请日:1948-11-16
Applicant: VICTOREEN INSTR COMPANY
Inventor: VICTOREEN JOHN A , EDDLESTON JAMES H
公开(公告)号:US2728004A
公开(公告)日:1955-12-20
申请号:US6025448
申请日:1948-11-16
Applicant: VICTOREEN INSTR COMPANY
Inventor: VICTOREEN JOHN A , EDDLESTON JAMES H