Case for a breathing mask or breathing apparatus unit

- Dragerwerk AG
Description

FIG. 1 is a rear top perspective view of a case for a breathing mask or breathing apparatus unit showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevation view thereof, the right side elevation view being a mirror image of that shown.

Referenced Cited
U.S. Patent Documents
D223144 March 1972 Bloch
D228888 October 1973 Feldman
D238979 February 1976 Perry et al.
3326408 June 1967 Ringlen
Patent History
Patent number: D289207
Type: Grant
Filed: Dec 26, 1984
Date of Patent: Apr 7, 1987
Assignee: Dragerwerk AG
Inventor: Wolfgang Drews (Bahrenhof)
Primary Examiner: James M. Gandy
Assistant Examiner: Kay H. Chin
Law Firm: McGlew and Tuttle
Application Number: 6/686,288
Classifications
Current U.S. Class: D29/6