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William R. Hawkins

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Acoustic damping turntable and adapter

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Patent

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Digital thermometer

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Temperature – humidity – atmospheric condition
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Electronic arithmetic learning aid with synthetic speech

Education and demonstration – Mathematics – Arithmetic
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Electronic teaching apparatus

Education and demonstration – Question or problem eliciting response – Correctness of response indicated to examine by...
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Module for an integrated circuit system

Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
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Profile ID: LFUS-PAI-P-648381

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