THE MACKEY AUTOMATIC FIRE EXTINGUISHER. AN IMPROVED MECHANICAL MOVEMENT. Dynamo Telegraphy. HANLEY'S CRANK APPLIED TO A BICYCLE. HANLEY'S COMPOUND DOUBLE CRANK ROTARY MOTION DEVICE. THE MACKEY ELECTRIC THERMOSTAT AND AUTOMATIC FIRE EXTINGUISHER. Conduit for Electric Wires., scientific american, 1888-11-03
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