TUBULAR METALIC STRUCTURES ASSEMBLY CONSTITUTING A HORIZONTAL UNDERGROUND PASSAGE HAVING INCLINATED ACCESSES AND VERTICAL AC-CESSES UP TO THE GROUND LEVEL
摘要
申请公布号
PT77705(A)
申请公布日期
1983.12.01
申请号
PT19830077705
申请日期
1983.11.23
申请人
SOREFAME-SOC. REUNIDAS DE FABRICACOES METALICAS,SARL