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公开(公告)号:US3228416A
公开(公告)日:1966-01-11
申请号:US22392262
申请日:1962-09-17
申请人: ERIE MFG CO
CPC分类号: G05D7/016 , C02F1/42 , Y10T137/7303 , Y10T137/7404 , Y10T137/7413 , Y10T137/8626 , Y10T137/86364
公开(公告)号:US3228416A
公开(公告)日:1966-01-11
申请号:US22392262
申请日:1962-09-17
申请人: ERIE MFG CO
CPC分类号: G05D7/016 , C02F1/42 , Y10T137/7303 , Y10T137/7404 , Y10T137/7413 , Y10T137/8626 , Y10T137/86364