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公开(公告)号:US3015081A
公开(公告)日:1961-12-26
申请号:US2840960
申请日:1960-05-11
Applicant: SANDERS ASSOCIATES INC
Inventor: AYER DONALD R , MCDOWELL ARNOLD N
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公开(公告)号:US3002165A
公开(公告)日:1961-09-26
申请号:US6986360
申请日:1960-11-17
Applicant: SANDERS ASSOCIATES INC
Inventor: AYER DONALD R , MCDOWELL ARNOLD N
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