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发明名称
Method of constructing a utility device for infants
摘要
申请公布号
US2515806(A)
申请公布日期
1950.07.18
申请号
US19480049501
申请日期
1948.09.16
申请人
SPANEL ABRAHAM N
发明人
SPANEL ABRAHAM N.
分类号
A47C27/08
主分类号
A47C27/08
代理机构
代理人
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