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Scientific American, Vol. 45, No. 9 (1881) (1881)
leaf 3
any use two millions of gallons daily. sun or rain, sashes being adjusted and held in place by a jack screw and For particulars apply to A. W Geist or Gordon Land, In order to lock the blinds firmly in place in any given set screws connected with the main frame, a tapered friction patentees,… … provided with two The swinging gate or more recesses in is provided with © 1881 SCIENTIFIC AMERICIAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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