United States Patent 2483253
Inventors:
Young, Harland H.
David, Rubinstein
Publication Date:
09/27/1949
Other Classes:
554/63, 510/448, 554/108, 554/109, 554/110, 554/66, 510/404
International Classes:
C11D9/00; C11D10/04; C11D1/46; C11D1/52; C11D10/00; C11D1/38