Interface unit with keypad and display

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Description

FIG. 1 is a perspective view of an interface unit with keypad and display showing our new design;

FIG. 2 is a side view thereof on an enlarged scale;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear view thereof.

Referenced Cited
U.S. Patent Documents
D249345 September 12, 1978 Oliveira et al.
D257976 January 20, 1981 Schmidt
D310069 August 21, 1990 Leone et al.
Other references
  • P831 Operator's Guide, p. II-4.
Patent History
Patent number: D345548
Type: Grant
Filed: Apr 24, 1992
Date of Patent: Mar 29, 1994
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Inventors: Mark J. Giebler (New Scandia, MN), Casey L. Carlson (Edina, MN), Perry S. Dotterman (Maplewood, MN), Bert A. Munthe (Marine on St. Croix, MN)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Freda S. Nunn
Attorneys: Gary L. Griswold, Walter N. Kirn, William D. Bauer
Application Number: 7/873,558
Classifications
Current U.S. Class: D14/100