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经营范围
发明名称
Scaffold jack
摘要
申请公布号
US1945828(A)
申请公布日期
1934.02.06
申请号
US19320598587
申请日期
1932.03.14
申请人
SNEAD EDWIN B
发明人
SNEAD EDWIN B.
分类号
E04G3/32
主分类号
E04G3/32
代理机构
代理人
主权项
地址
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