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发明名称
Trawl measuring mechanism
摘要
申请公布号
US2210759(A)
申请公布日期
1940.08.06
申请号
US19370164214
申请日期
1937.09.16
申请人
HANSEN HANS S
发明人
HANSEN HANS S.
分类号
B66D1/48
主分类号
B66D1/48
代理机构
代理人
主权项
地址
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