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经营范围
发明名称
Protector
摘要
申请公布号
US2239679(A)
申请公布日期
1941.04.29
申请号
US19400330595
申请日期
1940.04.19
申请人
JONES BERTHA L
发明人
JONES BERTHA L.
分类号
D06F1/00
主分类号
D06F1/00
代理机构
代理人
主权项
地址
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