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发明名称
Binder
摘要
申请公布号
US1804514(A)
申请公布日期
1931.05.12
申请号
US19300430989
申请日期
1930.02.24
申请人
RIDDIFORD CHARLES E
发明人
RIDDIFORD CHARLES E.
分类号
B42F11/00
主分类号
B42F11/00
代理机构
代理人
主权项
地址
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