Laurence Chen

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Disposable camera with simplified film advance and indicator

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Heat collector for smoke alarm

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
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Ionization chamber for a smoke detector

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
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Profile ID: LFUS-PAI-P-1495992

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