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Scientific American, Vol. 59, No. 7 (1888) (1888)
leaf 3
has been patented by which serves also as a ventilator for the room, being Messrs. Thomas Griffin and William J. Mitchell, of adapted to be closed on the inside by a valve connected promises much in the way of rapid and economical Noblesville, Ind. Each post is anchored in place by a with the… … include that also, as shown in the illustration. GRIFFIN & MITCHELL'S WIRE FENCE, Fig. 2,-THE AUTOMATIC RUBBER MIXER, © 1888 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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