Review of United States Patents Relating to Pest Control
United States. Entomology Research Division
Aug. 23, 1946). WINDOW SCREEN FRAME. Josiah H. Scruggs, Birmingham, Ala . 2,544,630 (Mar. 6, 1951; appl. Nov. 16, 1948). THERAPEUTIC COMPOSITIONS . Charles Paul Hegarty, Lansdowne, and Willard F. Verwey, Springfield, Pa.