Case for a breathing mask or breathing apparatus unit
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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
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