Illinois Malleable Iron Co. · Illinois Malleable Iron Co. · leaf 296
Fig, 9225A Fig. 9225B The Dewey Quick Vent Air Valve is for use where pressure does not exceed 10pounds. It will close against steam or water and will pass all the air that will go through}^-inch pipe and is intended for use where vacuum is not a factor. Price 20.00 The Dewey Vacuum Valve is…
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