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Publication of DE1502746A1publicationCriticalpatent/DE1502746A1/de
Publication of DE1502746B2publicationCriticalpatent/DE1502746B2/de
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
F16P3/18—Control arrangements requiring the use of both hands
F16P3/20—Control arrangements requiring the use of both hands for electric control systems