Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Patent
1993-05-07
1994-09-06
Douglas, Alan P.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Element or attachment
Patent
active
D03503569
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Dynatec Product Catalog, dated 1991.
Dynatec Advertisement Sheet on its Softalk and Mini-Softalk Shoulder Rests
Asch Jeffrey
Douglas Alan P.
Dynatec International Inc.
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