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公开(公告)号:US712397A
公开(公告)日:1902-10-28
申请号:US1902099743
申请日:1902-03-24
Applicant: LOUIS B MARKS
Inventor: MATTHEWS CHARLES PHILO
CPC classification number: G01J1/00
公开(公告)号:US712397A
公开(公告)日:1902-10-28
申请号:US1902099743
申请日:1902-03-24
Applicant: LOUIS B MARKS
Inventor: MATTHEWS CHARLES PHILO
CPC classification number: G01J1/00