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经营范围
发明名称
Colorless recording paper
摘要
申请公布号
USRE30803(E)
申请公布日期
1981.11.24
申请号
US19770850034
申请日期
1977.11.09
申请人
发明人
分类号
B41M5/136
主分类号
B41M5/136
代理机构
代理人
主权项
地址
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