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公开(公告)号:US1727004A
公开(公告)日:1929-09-03
申请号:US17082427
申请日:1927-02-25
Applicant: VALENTINE & COMPANY
Inventor: CONNOLLY FRANK P
IPC: G01J3/52
CPC classification number: G01J3/526
公开(公告)号:US1727004A
公开(公告)日:1929-09-03
申请号:US17082427
申请日:1927-02-25
Applicant: VALENTINE & COMPANY
Inventor: CONNOLLY FRANK P
IPC: G01J3/52
CPC classification number: G01J3/526