Wa-Sang Yeung

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Bug viewer

Photography and optical equipment – Optical article not elsewhere specified – Lens or objective
Design Patent

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Bug viewer

Photography and optical equipment – Optical article not elsewhere specified – Lens or objective
Design Patent

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Carrying case for spy kits

Design Patent

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Metal detector

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Radiation – e.g. – geiger counter
Design Patent

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Periscope

Photography and optical equipment – Optical article not elsewhere specified
Design Patent

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Profile ID: LFUS-PAI-P-2802811

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