Hearing aids: their use, care, and repair.
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 //
53006408
Hearing aids.
RF300 / .M3
617.89 MAN
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 //
53006408
Hearing aids.
RF300 / .M3
617.89 MAN