| 摘要 |
<p>1,059,363. Films. KALLE A.G. Oct. 16, 1963 [Oct. 18, 1962], No. 40883/63. Heading B5B. [Also in Division E1] A thermoplastics film of, e.g. polythene, polypropylene or unplasticized polyvinyl chloride, has on its upper surface sharp edged particles which may comprise chopped, granulated, or powdered plastics materials secured to the film by sintering, fusing, gluing, or pressing. The film is further provided with raised portions of conical shape with rounded tops drawn into the film.</p> |
