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B66B1/02—Control systems without regulation, i.e. without retroactive action
B66B1/06—Control systems without regulation, i.e. without retroactive action electric
B66B1/12—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. handles or levers, located at a control station for direct control movements, e.g. electric mining-hoist control systems
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Engineering & Computer Science
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Automation & Control Theory
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FR377799D1907-05-141907-05-14Perfectionnements aux dispositifs de sécurité pour machines d'extraction
ExpiredFR377799A
(fr)