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公开(公告)号：US3429337A
公开(公告)日：1969-02-25
申请号：US3429337D
申请日：1966-12-29
Applicant: INT BASIC ECONOMY CORP
Inventor： RAYMOND ROBERT E
CPC classification number: G05D16/18 , F15B2211/50536 , F15B2211/523 , F15B2211/528 , F15B2211/625 , F15B2211/6355 , F15B2211/8613 , F16K17/10 , G05D16/166 , Y10T137/7762 , Y10T137/87169 , Y10T137/87225
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