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发明名称
Child's walking training device
摘要
申请公布号
US2860424(A)
申请公布日期
1958.11.18
申请号
US19550513437
申请日期
1955.06.06
申请人
MCKINNOU MALCOLM N
发明人
MCKINNOU MALCOLM N.
分类号
A47D13/04
主分类号
A47D13/04
代理机构
代理人
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