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发明名称
LOOSE-LEAF BINDING DEVICES
摘要
申请公布号
US3540832(A)
申请公布日期
1970.11.17
申请号
USD3540832
申请日期
1968.01.30
申请人
LESLIE JOE MORRIS
发明人
LESLIE JOE MORRIS
分类号
B42F9/00;(IPC1-7):B42F3/00
主分类号
B42F9/00
代理机构
代理人
主权项
地址
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