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发明名称
Protective cover for note pads or books
摘要
申请公布号
US3065978(A)
申请公布日期
1962.11.27
申请号
US19610088187
申请日期
1961.02.09
申请人
STEPHENS WILLIAM A
发明人
STEPHENS WILLIAM A.
分类号
B42D5/00;B43L3/00
主分类号
B42D5/00
代理机构
代理人
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