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公开(公告)号：US3323484A
公开(公告)日：1967-06-06
申请号：US51679465
申请日：1965-12-27
Applicant: MINKIN HERBERT L , HOBART HOWARD F
Inventor： MINKIN HERBERT L , HOBART HOWARD F
IPC: G01P13/00
CPC classification number: G01P13/008 , Y10T137/8158
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