Combined annunciator and switching unit for hospital patients

- MRD, Inc.
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Description

FIG. 1 is a front perspective view of combined annunciator and switching unit for hospital patients showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D214705 July 1969 Brounn
D282463 February 4, 1986 Barr et al.
D283687 May 6, 1986 Walser
D305018 December 12, 1989 Pena et al.
D326238 May 19, 1992 Spinosa
Patent History
Patent number: D340878
Type: Grant
Filed: Jul 8, 1992
Date of Patent: Nov 2, 1993
Assignee: MRD, Inc. (Austin, TX)
Inventor: Robert J. Spinosa (Austin, TX)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Marcus Jackson
Law Firm: Niro, Scavone, Haller & Niro
Application Number: 7/909,828
Classifications
Current U.S. Class: Bell Or Chime (D10/118); Button Operated (D13/171)