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公开(公告)号：US2988041A
公开(公告)日：1961-06-13
申请号：US83252559
申请日：1959-08-10
Applicant: DAYSTROM INC
Inventor： SCHMITZ JR HERMAN J , PIERSON VAUGHN F , HAGEMAN GEORGE F
IPC: G01K5/70
CPC classification number: G01K5/70
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公开(公告)号：US3066534A
公开(公告)日：1962-12-04
申请号：US84805759
申请日：1959-10-22
Applicant: DAYSTROM INC
Inventor： PIERSON VAUGHN F
IPC: G01K5/70
CPC classification number: G01K5/70
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