Show Roosevelt Tightens Grip GripOn GripOn GripOn On Export Control WASHINGTON April 15 UP Pr President Roosevelt has issued two proclamations placing additional articles and materials under export export export ex ex- ex- ex port control The first effective Tuesday covers covers cov cov- ers construction and conveying machinery and certain mining well and pumping machinery The second proclamation effective effective effective tive May 6 covers six products including some vegetable fibers and casein |