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经营范围
发明名称
Erasing shield
摘要
申请公布号
US1954149(A)
申请公布日期
1934.04.10
申请号
US19330669427
申请日期
1933.05.04
申请人
ERICH STAMM PAUL
发明人
STAMM PAUL ERICH
分类号
B43L19/00
主分类号
B43L19/00
代理机构
代理人
主权项
地址
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