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公开(公告)号：US3535451A
公开(公告)日：1970-10-20
申请号：US3535451D
申请日：1967-12-21
Applicant: WEBB JAMES E , NASA
Inventor： LANDAUER FREDERICK P
CPC classification number: H04L7/08 , H04L2007/047 , H04N7/045 , H04N7/167
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