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发明名称
Passerelle de travail précontrainte
摘要
申请公布号
FR1493499(A)
申请公布日期
1967.09.01
申请号
FR19660062451
申请日期
1966.05.17
申请人
发明人
MARTEAU RAYMOND FERNAND
分类号
E01D1/00;E04C3/10
主分类号
E01D1/00
代理机构
代理人
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地址
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