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公开(公告)号:US856667A
公开(公告)日:1907-06-11
申请号:US1906330581
申请日:1906-08-14
Applicant: J C RAWLINGS , WRIGHT JAMES C
Inventor: WRIGHT JAMES C
CPC classification number: G01G13/00
公开(公告)号:US856667A
公开(公告)日:1907-06-11
申请号:US1906330581
申请日:1906-08-14
Applicant: J C RAWLINGS , WRIGHT JAMES C
Inventor: WRIGHT JAMES C
CPC classification number: G01G13/00