What do you mean by normal hearing?
Explore the source record for details and available documents.
Hearing↗
Biomedical subjects
J H BOTSFORD
Publications and source records attributed to J H BOTSFORD.
Pneumatic sample crusher enclosure and air exhaust mufflers.
Explore the source record for details and available documents.
Biomedical Research↗
Noise reduction at chipping operations on large castings.
Explore the source record for details and available documents.
Biomedical Research↗
Compressed air exhaust mufflers.
Explore the source record for details and available documents.
Biomedical Research↗
DISCUSSION OF PROPOSED CHANGES IN STANDARDS FOR HEARING TESTING INSTRUMENTS.
Explore the source record for details and available documents.
Audiometry↗