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Ri-El Richerche Eiettroniche S.p.A.
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Cologno Monzese, IT
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Patent Grant
Pushbutton tuner
Patent number
4,279,170
Issue date
Jul 21, 1981
Ri-El Richerche Eiettroniche S.p.A.
Nardino Righi
H03 - BASIC ELECTRONIC CIRCUITRY
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