USD177572S - Hearing aid - Google Patents
Hearing aid Download PDFInfo
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- USD177572S USD177572S US D177572 S USD177572 S US D177572S
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United States Patent ()fiice HEARING AID Paul D. Kendall, Gates Mills, Ohio Application January 6, 1954, Serial No. 28,393
Tei'm of patent 3 /2 years (Cl. D26-14) Des. 177,572 Patented May 1, 1956 Des. 177,572
PAGE 2 References Cited in the file of this patent UNITED STATES PATENTS D. 134,424 King Nov. 24, 1942 D. 146,838 Tresise et al. May 27, 1947 D. 153,150 Hull Mar. 22, 1949 OTHER REFERENCES Balfour Blue Book, 1949, page 33, item #20130. The Chicago Wholesaler, Cat. #105. 1939, page 43, Item #12E227.
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