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公开(公告)号：US3298564A
公开(公告)日：1967-01-17
申请号：US35551964
申请日：1964-03-27
Applicant: WHEATLEY SETH J , MCCALEB HAROLD K
Inventor： WHEATLEY SETH J , MCCALEB HAROLD K
CPC classification number: B65B35/06 , H01J9/46 , H01J2893/0096
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