Two new aviation hearing protectors
By: by Richard Young
Contributors: Technology & Development Program (U.S.); Technology & Development Center (San Dimas, Calif.)
Series: Tech tips; Tech tips
Publisher: United States Dept. of Agriculture, Forest Service, Technology & Development Program
Published: 1991
Place of publication: [San Dimas, Calif.]
Language: eng
Subjects: Noise induced Deafness; Prevention; Equipment and supplies
Notes: Title from caption.

"Aviation".

"May 1991".

"5700".

"9157 1304".