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发明名称
Cast iron double hub running trap
摘要
申请公布号
US2069428(A)
申请公布日期
1937.02.02
申请号
US19360074293
申请日期
1936.04.14
申请人
TOBIASON ARNOLD J
发明人
TOBIASON ARNOLD J.
分类号
F16L45/00
主分类号
F16L45/00
代理机构
代理人
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地址
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