Telephone

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

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D03180522

REFERENCES:
patent: D262107 (1981-12-01), Thomas
patent: D276722 (1984-12-01), Festa
patent: D276807 (1984-12-01), Stein
patent: D287584 (1987-01-01), Huang
patent: D300318 (1989-03-01), Ng
patent: 3136200 (1964-06-01), Saxophone
patent: 3308707 (1967-03-01), Keleschek
patent: 4685373 (1987-08-01), Novo
patent: 4847818 (1989-07-01), Olsen
Smithsonian Magazine, Aug. 1981, p. 141; Leather Covered Wooden Serpent Wind Instrument, Early 19th Century.

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