| 摘要 |
578,045. Wheel tyres. DUNLOP RUBBER CO., Ltd., PEARE, W. G. M., and YOXON, G. H. B. April 28, 1943, No. 6689. [Class 144 (ii)] [Also in Group V] To improve adhesion between the rubber and the metal base in a tyre of the ''band" type, the surface of the rubber which is to be vulcanized to the metal base is ridged, as at 31, to break up the "extrusion grain."
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