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发明名称
Changeable profile toys
摘要
申请公布号
US2755577(A)
申请公布日期
1956.07.24
申请号
US19530395191
申请日期
1953.11.30
申请人
ELMER GREENSFELDER
发明人
GREENSFELDER ELMER
分类号
A63H33/22
主分类号
A63H33/22
代理机构
代理人
主权项
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