| 摘要 |
<p>341,503. Pillars and building slabs. THOMPSON, F. W., 37, Dale View Road, Sneinton Hill, Nottingham. Oct. 10, 1929, No. 30703. [Classes 20 (i), 20 (iv) and 87 (i).] A pillar or building slab is formed from the spoilt paper centres of newsreels which are tarred inside and out, coated with grit, bound with wire, and filled in with concrete. Several newsreel centres may be combined to form the centre of a pillar.</p> |
