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发明名称
Hybrid composite expandable shaft
摘要
An expandable shaft of the slotted type made of metal and a fiber and resin composite material. The shaft is formed of an elongated shell having hollow portions filled with a fiber/resin material.
申请公布号
US5746387(A)
申请公布日期
1998.05.05
申请号
US19960604152
申请日期
1996.02.20
申请人
PRETTO, ALESSIO G.;PRETTO, JOHN A.
发明人
PRETTO, ALESSIO G.;PRETTO, JOHN A.
分类号
B65H75/24;(IPC1-7):B65H75/24;B65H75/08
主分类号
B65H75/24
代理机构
代理人
主权项
地址
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