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发明名称
Extensible step assembly
摘要
An extensible step assembly having steps secured to sections of extensible or telescoping arms whereby the assembly can be moved from a retracted compact position to an extended position for use.
申请公布号
US4079815(A)
申请公布日期
1978.03.21
申请号
US19770796617
申请日期
1977.05.13
申请人
CORMIER, JEAN-PAUL JOSEPH
发明人
CORMIER, JEAN-PAUL JOSEPH
分类号
B60R3/02;(IPC1-7):B60R3/02
主分类号
B60R3/02
代理机构
代理人
主权项
地址
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