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Scientific American, Vol. 69, No. 8 (August 1893) (1893)

leaf 3

An illustration from Scientific American, Vol. 69, No. 8 (August 1893), 1893, leaf 3
y slightly to force the spring into con- ishment.—Dr. Z., in La Nature. burg, Texas. The part of the gap on which the cattle tact with the guide eye, and thus give an alarm, while are likely to approach is covered by a vertically mov- the device may be also connected with the door knob, able… … down to allow the cattle to pass without injury. chanics and draughtsmen, THE FOX SAFETY RAZOR ABE BTBOF © 1893 SCIENTIFIC AMERICAN, INC

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