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发明名称
Motion-picture film reel supporting and driving apparatus
摘要
申请公布号
US2428538(A)
申请公布日期
1947.10.07
申请号
US19450581664
申请日期
1945.03.08
申请人
WENZEL FRED J
发明人
WENZEL FRED J.
分类号
A61M21/00;G03B21/43
主分类号
A61M21/00
代理机构
代理人
主权项
地址
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