Method of making hour symbols for timepiece dials |
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| 申请号 | US40329664 | 申请日 | 1964-10-12 | 公开(公告)号 | US3287798A | 公开(公告)日 | 1966-11-29 |
| 申请人 | BEYELER & CO S A; | 发明人 | PIERRE-EDOUARD BEYELER; MAURICE BEYELER JEAN; | ||||
| 摘要 | |||||||
| 权利要求 | 1. IN A METHOD OF MANUFACTURING HOUR SYMBOLS FOR TIMEPIECE DIALS, THE STEPS OF, FORMING BLANKS OF THE SYMBOLS, FRICTIONALLY ENGAGING THE BLANKS EDGEWISE IN APERTURES IN A PLATE SUPPORT SO THAT OPPOSITE FACES OF THE BLANKS PROJECT OUTWARDLY FROM THE PLATE SUPPORT, AND SIMULTANEOUSLY REMOVING MATERIAL BY MACHINING FROM THE OPPOSITE FACES OF THE BLANKS BY MEANS OF TWO ROTATING TOOLS. |
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| 说明书全文 | |||||||
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