Portable voice recorder

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Recorder

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1401

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D04074025

REFERENCES:
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patent: 5008942 (1991-04-01), Kikuchi
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patent: 5056145 (1991-10-01), Yamamoto et al.
patent: 5217379 (1993-06-01), Kirschenbaum et al.

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