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公开(公告)号:US2767577A
公开(公告)日:1956-10-23
申请号:US40393854
申请日:1954-01-13
Applicant: ALLEN GILBERT CHARLES
Inventor: ALLEN GILBERT CHARLES
IPC: G01M9/06
CPC classification number: G01M9/062
公开(公告)号:US2767577A
公开(公告)日:1956-10-23
申请号:US40393854
申请日:1954-01-13
Applicant: ALLEN GILBERT CHARLES
Inventor: ALLEN GILBERT CHARLES
IPC: G01M9/06
CPC classification number: G01M9/062