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发明名称
Back seat playpen
摘要
申请公布号
US2645789(A)
申请公布日期
1953.07.21
申请号
US19500172671
申请日期
1950.07.08
申请人
WISNER JR JOSEPH K
发明人
JR. JOSEPH K. WISNER,
分类号
A47D13/06
主分类号
A47D13/06
代理机构
代理人
主权项
地址
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