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经营范围
发明名称
Apparatus for supporting annular articles
摘要
申请公布号
US1969068(A)
申请公布日期
1934.08.07
申请号
US19330694935
申请日期
1933.10.24
申请人
THE B. F. GOODRICH COMPANY
发明人
FREEMAN WALTER B.
分类号
主分类号
代理机构
代理人
主权项
地址
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