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公开(公告)号:US3540046A
公开(公告)日:1970-11-10
申请号:US3540046D
申请日:1968-12-18
Applicant: GEN DYNAMICS CORP
Inventor: FALK BERND
IPC: G01S7/40 , G06G7/22 , G06G7/62 , G09B9/00
CPC classification number: G01S7/40 , G06G7/22 , G06G7/62