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H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
FR637908D1926-11-201926-11-20Système de réglage automatique, synchrone ou non, par commande unique, d'appareils récepteurs de t. s. f.
ExpiredFR637908A
(fr)