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公开(公告)号:US3131373A
公开(公告)日:1964-04-28
申请号:US12443561
申请日:1961-07-17
Applicant: BERKEL PATENT NV
Inventor: ADRIANUS VERDUIN
IPC: G01L1/22
CPC classification number: G01L1/2275
公开(公告)号:US3131373A
公开(公告)日:1964-04-28
申请号:US12443561
申请日:1961-07-17
Applicant: BERKEL PATENT NV
Inventor: ADRIANUS VERDUIN
IPC: G01L1/22
CPC classification number: G01L1/2275