| 摘要 |
923,777. Metal sheet. CONCH INTERNATIONAL METHANE Ltd. Nov. 21, 1961, No. 41535/61. Class 20 (2). [Also in Groups XXII and XXVIII] Expansible metal sheet, i.e. sheet which when fully restrained and subjected to low temperatures will not suffer any stress exceeding its elastic limit, comprises a plurality of pan-shaped modular sections 4 arranged side by side and end to end and a plurality of conical or pyramidal corner metal members 7 welded together along their edges 10 (see Group XXII). Stainless steel, aluminium or aluminium alloy materials are used. U.S.A. Specification 2,971,667 is referred to. |
