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发明名称
Toy hectograph
摘要
申请公布号
US2927531(A)
申请公布日期
1960.03.08
申请号
US19580772043
申请日期
1958.11.05
申请人
HIRSCH BENJAMIN L;HENRY HIRSCH
发明人
HIRSCH BENJAMIN L.;HIRSCH HENRY
分类号
A63H33/30;B41L9/00
主分类号
A63H33/30
代理机构
代理人
主权项
地址
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