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发明名称
Bridge guard
摘要
申请公布号
US2392529(A)
申请公布日期
1946.01.08
申请号
US19440559356
申请日期
1944.10.19
申请人
GOTTHOLM CARL G
发明人
GOTTHOLM CARL G.
分类号
B61L1/20
主分类号
B61L1/20
代理机构
代理人
主权项
地址
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