00762cam a22002411 4500 sg 46000156 DLC 20260227112749.0 761021s1946 xx 000 0 eng c sg 46000156 (OCoLC)2519811 U.S. Surg.-gen. off. Libr. O OCoLC DLC premarc RF300 .B7 617.8 Brentano, Lowell, 1895-1950. Ways to better hearing, by Lowell Brentano. Diagrams by Ralph Graeter... New York, N.Y., F. Watts, inc. [1946] 95, [1] p. illus. 28 1/2 x 22 cm. With contributions by Laura Stovil, Mary C. New, Ralph J. Crosby and others. Hearing aids. Deafness. 90770 90770