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发明名称
TRAINING DEVICE FOR AIDING INFANTS TO WALK
摘要
申请公布号
US3529819(A)
申请公布日期
1970.09.22
申请号
USD3529819
申请日期
1968.05.06
申请人
JOHN L. BLANK
发明人
JOHN L. BLANK
分类号
A47D13/04;(IPC1-7):A61H3/00
主分类号
A47D13/04
代理机构
代理人
主权项
地址
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