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经营范围
发明名称
Improvements in or relating to electrical ducts or conduits for use in building construction
摘要
申请公布号
GB595513(A)
申请公布日期
1947.12.08
申请号
GB19450017093
申请日期
1945.07.04
申请人
JOHN GREEK STORY;JAMES STEVENSON CLARK
发明人
分类号
H02G3/04
主分类号
H02G3/04
代理机构
代理人
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