72130292
Oct 19, 1961
Dec 4, 1962
GRAPHIC CHART SYSTEMS AND COMPONENTS THEREOF, INCLUDING LETTERS, NUMERALS, ADVERTISING SIGNS, DISPLAY STANDS, FRAMES, SHEETS, SECTIONS, BEADINGS, BANDS, STRIPS, FILMS, PLATES, SLABS, BLOCKS, BARS, RODS, TUBES, AND CYLINDERS
Telecommunications