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发明名称
Center plate and guide structure
摘要
申请公布号
US1920415(A)
申请公布日期
1933.08.01
申请号
US19270226446
申请日期
1927.10.15
申请人
T. H. SYMINGTON & SON, INC.
发明人
MARTIN MARK H.
分类号
B61F5/18
主分类号
B61F5/18
代理机构
代理人
主权项
地址
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