发明名称 Electrically operated retractable jack
摘要 An electrically operated retractable jack for leveling a vehicle. The jack is automatically retractable from a vertical position into a horizontal stowage position under the vehicle. The jack may be operated individually or a plurality of jacks may be used in leveling the corners of a vehicle. The jacks may be raised and lowered by control switches mounted inside the vehicle without the need of the operator getting outside the vehicle.
申请公布号 US4067543(A) 申请公布日期 1978.01.10
申请号 US19770794053 申请日期 1977.05.05
申请人 ORTH, JOSEPH P.;SCHMIDT, GERALD F. 发明人 ORTH, JOSEPH P.;SCHMIDT, GERALD F.
分类号 B60S9/08;B66F3/08;B66F3/44;(IPC1-7):B60S9/02 主分类号 B60S9/08
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