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发明名称
Hollow cover for sheet material
摘要
申请公布号
US2737353(A)
申请公布日期
1956.03.06
申请号
US19520281428
申请日期
1952.04.09
申请人
LAWRENCE FEINSTEIN
发明人
JR. JOHN J. BANKS,
分类号
A47K10/38
主分类号
A47K10/38
代理机构
代理人
主权项
地址
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