A NEW SUBMERGED ELECTRIC MOTOR AND PROPELLER. of the tube. A bracket is clamped to the stern of the boat by thumb screws and allows the motor to be A NEW AUTOMATIC TELEGRAPH REPEATER THE SUBMERGED ELECTRIC PROPELLER AT WORK. SUBMERGED ELECTRIC BOAT PROPELLER. DIAGRAM OF APPARATUS IN WHICH SOUNDERS ARE USED., scientific american, 1901-10-19
A NEW SUBMERGED ELECTRIC MOTOR AND PROPELLER. of the tube. A bracket is clamped to the stern of the boat by thumb screws and allows the motor to be A NEW AUTOMATIC TELEGRAPH REPEATER THE SUBMERGED ELECTRIC PROPELLER AT WORK. SUBMERGED ELECTRIC BOAT PROPELLER. DIAGRAM OF APPARATUS IN WHICH SOUNDERS ARE USED., scientific american, 1901-10-19
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