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发明名称
Reel
摘要
申请公布号
US2023172(A)
申请公布日期
1935.12.03
申请号
US19330681985
申请日期
1933.07.24
申请人
HAYWARD RALPH B
发明人
HAYWARD RALPH B.
分类号
B65H75/14
主分类号
B65H75/14
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