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发明名称
Verfahren zum Isolieren von Schienen für elektrische Strassenbahnen durch Einbetten in bituminösen Materialien.
摘要
申请公布号
CH174254(A)
申请公布日期
1934.12.31
申请号
CHD174254
申请日期
1933.12.14
申请人
COHEN,LOUIS
发明人
COHEN,LOUIS
分类号
E01C9/06
主分类号
E01C9/06
代理机构
代理人
主权项
地址
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