| 摘要 |
<p>1439192 Moulding foam filled panels AUTOMATED CONSTRUCTION INDUSTRIES Inc 3 May 1973 [22 May 1972 8 June 1972 (2) 1 Nov 1972] 02003/76 Divided out of 1439191 Heading B5A [Also in Division E1] The subject matter of this Specification is the same as that of the parent Specification but the claims are directed to a building panel comprising a rigid polyurethane foam core completely encased in a skin of polyester resin, the skin being in two layers and the inner layer containing glass fibres.</p> |
