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发明名称
Broken flange detector for rail cars
摘要
申请公布号
US2277099(A)
申请公布日期
1942.03.24
申请号
US19400344825
申请日期
1940.07.10
申请人
HARSHMAN HAROLD R
发明人
HARSHMAN HAROLD R.
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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