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经营范围
发明名称
Hoist hook
摘要
申请公布号
US2476847(A)
申请公布日期
1949.07.19
申请号
US19450600328
申请日期
1945.06.19
申请人
DOBSON JOHN E
发明人
DOBSON JOHN E.
分类号
B66C1/36
主分类号
B66C1/36
代理机构
代理人
主权项
地址
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