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发明名称
Universalschluessel zur Instandhaltung des Eisenbahnoberbaues
摘要
申请公布号
DE1231736(B)
申请公布日期
1967.01.05
申请号
DE1962M052761
申请日期
1962.05.07
申请人
MINISTERSTVO NA TRANSPORTA I SAOBSCHTENIATA
发明人
MIKOV MICHAIL GEORGIEV;ZWETKOV STOYAN PETROV
分类号
E01B29/22;E01B29/28
主分类号
E01B29/22
代理机构
代理人
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