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公开(公告)号：US2400401A
公开(公告)日：1946-05-14
申请号：US48402443
申请日：1943-04-22
Applicant: STANDARD PRODUCTS CO
Inventor： ECKERMAN ROBERT M , FISHER CHARLES E
CPC classification number: G02B7/1805 , F41H5/266 , G02B23/08 , Y10T29/49902
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