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公开(公告)号:US2583930A
公开(公告)日:1952-01-29
申请号:US6354148
申请日:1948-12-04
Applicant: FACTORY MUTUAL RES CORP
Inventor: COTTON PAUL E
IPC: G01N27/16
CPC classification number: G01N27/16
公开(公告)号:US2583930A
公开(公告)日:1952-01-29
申请号:US6354148
申请日:1948-12-04
Applicant: FACTORY MUTUAL RES CORP
Inventor: COTTON PAUL E
IPC: G01N27/16
CPC classification number: G01N27/16