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发明名称
Self Erecting Zipper Lift
摘要
A zipper style lift that coils into a box for storage, but extends to form a rigid, self erecting lift part. The lift stores itself in a housing when retracted, by retracting chain parts into a spiral form.
申请公布号
US2009026018(A1)
申请公布日期
2009.01.29
申请号
US20080180447
申请日期
2008.07.25
申请人
PRODUCTION RESOURCE GROUP L.L.C
发明人
KEMPF JAMES
分类号
B66F9/08;B65G61/00
主分类号
B66F9/08
代理机构
代理人
主权项
地址
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