Improvements in or relating to mechanisms for producing rotational movement of a mass about an axis with a periodic reversal of the direction of rotation
摘要
申请公布号
GB818821(A)
申请公布日期
1959.08.26
申请号
GB19560029605
申请日期
1956.09.27
申请人
THE GENERAL ELECTRIC COMPANY LIMITED;HORACE BRIDEN
