| 摘要 |
1,138,724. Embossing. HARTE & CO. Inc. 6 June, 1967 [8 June, 1966], No. 26118/67. Addition to 1,138,723. Heading B6J. In a process as described in Specification 1,138,723, the polyethylene sheet is replaced by polypropylene, polystyrene, tetrafluoroethylene, polyacetals, polyacrylin, polycarbonates, polyethylene terephthalate, or bis (chloromethyl) oxetane. |
