发明名称 COUPLING FOR TOOL ELEMENT
摘要 An electric grass trimming device comprising a handle including a grip and trigger switch at one end and an electric motor at the other end, the motor being arranged to drive a cutting blade mounted beneath the motor. An improved coupling arrangement between the blade and the motor shaft is described.
申请公布号 US3670413(A) 申请公布日期 1972.06.20
申请号 USD3670413 申请日期 1970.08.21
申请人 BLACK AND DECKER MFG. CO.:THE 发明人 EDWIN J. WEBER
分类号 A01D34/68;A01D69/08;F16D1/08;F16D7/02;(IPC1-7):B26B25/00 主分类号 A01D34/68
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