Color test chart for video systems

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Food preparation type

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D02834049

REFERENCES:
patent: D165025 (1951-10-01), Rodbell
patent: 2742525 (1956-04-01), Larky et al.
patent: 2931856 (1960-04-01), Davis et al.
patent: 2975229 (1961-03-01), Wlasuk
Radio Electronics Brochure, 5/1954, p. 36, FIGS. 3-8, Color Charts.

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