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经营范围
发明名称
Retractable supporting gear
摘要
申请公布号
US1921420(A)
申请公布日期
1933.08.08
申请号
US19310529420
申请日期
1931.04.11
申请人
O. D. JENNINGS & COMPANY
发明人
MACOUREK JERRY F.
分类号
B60B33/06
主分类号
B60B33/06
代理机构
代理人
主权项
地址
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