00908cam a22002531 4500 4291 4291 6039956 OSt 20191025140900.0 750815s1953 xx 000 0 eng 53006408 (OCoLC)1548154 DLC FM OCoLC DLC premarc RF300 .M3 617.89 MAN Mandl, Matthew. Hearing aids: their use, care, and repair. New York, Macmillan [1953] 158 p. illus. 22 cm. The modern hearing aids // the new user // method of wear // the molded earpiece // care of hearing aid // battery care and storage // making minor repairs // electronic repair factors // servicing procedures and typical troubles // future trends // index // Hearing aids. 7 cbc oclcrpl u ncip 19 y-gencatlg ddc STL 0 0 ddc 0 0 94/4 AIISH AIISH 2019-10-25 0 617.89 MAN 14 2019-10-25 00:00:00 2019-10-25 STS