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发明名称
Method of making waterproof tracing cloth
摘要
申请公布号
US2361082(A)
申请公布日期
1944.10.24
申请号
US19410412778
申请日期
1941.09.29
申请人
BROWN NATHAN J
发明人
BROWN NATHAN J.
分类号
G03F1/00
主分类号
G03F1/00
代理机构
代理人
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