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发明名称
Centralized zone control system
摘要
申请公布号
US3112908(A)
申请公布日期
1963.12.03
申请号
US19580730596
申请日期
1958.04.24
申请人
GENERAL SIGNAL CORPORATION
发明人
HAILES WILLIAM D.
分类号
B61L3/22;B61L7/08;B61L25/04
主分类号
B61L3/22
代理机构
代理人
主权项
地址
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