发明名称 PRODUCTION OF DECORATIVE TILES
摘要 The decorative tile formed from thin stainless steel and having a plurality of depressions on one face thereof is formed by a method comprising the steps of partially forming the depressions while the tile still forms part of a larger sheet of material, severing the partially formed tile from the sheet of material by means of a punch cooperating with a cutting die, and then completing the formation of the depressions while the tile is still in the cutting die, the periphery of the tile thereby being slightly withdrawn from the walls of the die so that subsequent removal of the tile from the die is facilitated.
申请公布号 US3648499(A) 申请公布日期 1972.03.14
申请号 USD3648499 申请日期 1969.12.11
申请人 ZEALAND ENGINEERING CO. LTD. 发明人 PETER NORMAN FREDERICK LANGMEAD
分类号 B21D53/00;E04F13/12;(IPC1-7):B21D22/10 主分类号 B21D53/00
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