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发明名称
Motion picture film reel
摘要
申请公布号
US1926588(A)
申请公布日期
1933.09.12
申请号
US19300420983
申请日期
1930.01.15
申请人
HAYDEN ARTHUR C
发明人
HAYDEN ARTHUR C.
分类号
G03B21/32
主分类号
G03B21/32
代理机构
代理人
主权项
地址
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