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AN ENGINE START-UP AND SHUT-DOWN SYSTEM WITH PNEUMATIC DRIVE FOR OPERATION IN MINES UNDER METHANE HAZARD AND FORTRANSMITTING AND STOPPING THE ALARM SIGNAL CAUTIONING AGAINST START-UP OF THE SAID ENGINE
AN ENGINE START-UP AND SHUT-DOWN SYSTEM WITH PNEUMATIC DRIVE FOR OPERATION IN MINES UNDER METHANE HAZARD AND FORTRANSMITTING AND STOPPING THE ALARM SIGNAL CAUTIONING AGAINST START-UP OF THE SAID ENGINE