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经营范围
发明名称
Film winder
摘要
申请公布号
US2298339(A)
申请公布日期
1942.10.13
申请号
US19400359419
申请日期
1940.10.02
申请人
BOES WALTER W
发明人
BOES WALTER W.
分类号
G03B17/30
主分类号
G03B17/30
代理机构
代理人
主权项
地址
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