| 摘要 |
1,239,254. Buoyant cables. SOC. INDUSTRIELLE DE LIAISONS ELECTRIQUES. 1 Oct., 1968 [5 Oct., 1967], No. 46443/68. Heading H1A. The core of a buoyant cable is formed from a succession of rigid, watertight cellular polyurethane cylinders provided with plywood end discs in alternation with flexible elements. The plywood discs are fixed to the polyurethane cylinders by epoxy resin adhesive. |
