发明名称 Process for making a record
摘要 A process for making a plastic record including the ordered steps of placing a cake of transparent moldable plastic in a record press having grooves for impressing sound grooves into the plastic, placing on opaque sheet of material having a picture printed thereon on at least one side onto the cake in the record press, placing a transparent moldable plastic on top of the opaque sheet of material and pressing the combined cake, sheet and transparent plastic in the record press whereby a transparent record having a picture and sound grooves contained therein is formed.
申请公布号 US4248818(A) 申请公布日期 1981.02.03
申请号 US19780973872 申请日期 1978.12.28
申请人 ELIZABETH, KATHLEEN 发明人 ELIZABETH, KATHLEEN
分类号 B29C43/02;B29C43/18;B29C70/70;(IPC1-7):B29C9/00;B29C17/00;B29D17/00 主分类号 B29C43/02
代理机构 代理人
主权项
地址