| http://www.w3.org/ns/prov#value | - M ATT RNEV 1 1 Patented Nov. 9, 1948 2,453,192 MOISTURE IMPERVIOUS VENT Herbert W. Bryant, Chatham, N. J., assignor to Bell Telephone Laboratories, Incorporated, New York, N. Y., a corporation of New York 4 Claims. ' This invention relates to vents and more particularly to compensating vents pervious to air and substantially impervious to water and especially suitable for use in sound translating
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