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发明名称
Interchangeable electric switch heaters
摘要
申请公布号
US3150252(A)
申请公布日期
1964.09.22
申请号
US19620196959
申请日期
1962.05.23
申请人
THE RAILS COMPANY
发明人
HOLSTEIN FRED W.
分类号
B61L1/20;E01B7/24
主分类号
B61L1/20
代理机构
代理人
主权项
地址
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