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发明名称
Film reel construction
摘要
申请公布号
US2097778(A)
申请公布日期
1937.11.02
申请号
US19340737371
申请日期
1934.07.28
申请人
FRANK ACKERMAN;HERMAN GOULD
发明人
SCHAUB EUGENE LOUIS
分类号
B65H75/20;G03B21/32
主分类号
B65H75/20
代理机构
代理人
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地址
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