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发明名称
Corporate seal
摘要
申请公布号
US2939385(A)
申请公布日期
1960.06.07
申请号
US19580709254
申请日期
1958.01.16
申请人
ERWIN WOLBERG
发明人
WOLBERG ERWIN
分类号
B41K3/36;B44B5/00
主分类号
B41K3/36
代理机构
代理人
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地址
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