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经营范围
发明名称
Expanding clamping means
摘要
申请公布号
US1848347(A)
申请公布日期
1932.03.08
申请号
US19300467371
申请日期
1930.07.11
申请人
JARVIS AND JARVIS, INC.
发明人
JARVIS FRANK J.
分类号
B60B33/00
主分类号
B60B33/00
代理机构
代理人
主权项
地址
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