on cubic feet of gas every 24 hours; and this is only struction of the device, which is represented in position on the slats, tightly closed, are an additional protection against one of quite a number of large gas wells, and almost num- the teat in Fig. 1. berless small ones, for it must be… … made of German silver. Tbe invention, which is shown attached to the blinds in For further particulars, the inventor may be addressed as Fig. 1, and enlarged in Fiar. 2, consists of a plate of metal, above. A, fastened to tbe stile, and between tbe latter and the slats, by means of a single screw…
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