AN IMPROVED CHIMNEY COWL AND VENTILATOR. AN IMPROVED SHINGLING GAUGE. SLANE'S SHINGLING GATIOB. The Electric Light in Medical Investigations. A DEVICE FOR LOCKING STEERING GEAR. va I BINNS' PATENT BANDING SPINDLES. AN IMPROVED FENCE AND FENCE POST. IMPROVED RAILWAY SWITCH STAND AND SIGNAL. BINNS' PATENT BANDING SPINDLES., scientific american, 1888-06-16
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