发明名称 |
Method of manufacture of identical parts displaying different indicia |
摘要 |
A method of manufacturing parts which are otherwise identical but which display different indicia such as a typewriter or the like keys which comprises the steps of injection molding a plurality of identical parts of a plastic having a filler material capable of undergoing a color change, and thereafter exposing individually the identical parts to a radiation source for changing the color of localized portions of the part to display the indicia while retaining the molded color of remaining portions.
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申请公布号 |
US4307047(A) |
申请公布日期 |
1981.12.22 |
申请号 |
US19800179040 |
申请日期 |
1980.08.18 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
EDINGER, EGON;REISER, PETER |
分类号 |
B29C35/00;B29C35/08;B29C45/00;B29C59/16;B29C71/04;B41J5/12;B41M5/26;B44B7/00;C08J7/00;H01H11/00;(IPC1-7):B41M5/26 |
主分类号 |
B29C35/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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