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经营范围
发明名称
TEACHING AID
摘要
申请公布号
US3460272(A)
申请公布日期
1969.08.12
申请号
USD3460272
申请日期
1965.10.24
申请人
ALBERT P. PELLICORE
发明人
ALBERT P. PELLICORE
分类号
A61H1/02;(IPC1-7):A63B21/00;A63B23/00
主分类号
A61H1/02
代理机构
代理人
主权项
地址
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