| 摘要 |
<p>An improved key duplicating machine provided with an illumination lamp, comprising:
- at least one proximity sensor (30) positioned within the machine operative area,
- an electrical power circuit for said lamp, activatable by said sensor when an operator's hand enters said operative area.
- means for deactivating said power circuit a predetermined time after said sensor (30) has ceased to sense the presence of said hand.</p> |
