Audio dosimeter for detecting noise level

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Description

FIG. 1 is a perspective view of an audio dosimeter for detecting noise level showing my new design;

FIG. 2 is a elevational view of one side, thereof, the other side being a mirror image; and

FIG. 3 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D188130 June 1960 Stuckrath
D193781 October 1962 Hoogesteger et al.
D229968 January 1974 Williams
D247161 February 7, 1978 Fernandez et al.
D269697 July 12, 1983 Graham et al.
4113980 September 12, 1978 Bell
Patent History
Patent number: D282149
Type: Grant
Filed: Apr 8, 1983
Date of Patent: Jan 14, 1986
Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE)
Inventor: David A. White (Folcroft, PA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lynn Wilder
Attorney: Hilmar L. Fricke
Application Number: 6/483,435