Spirometric computer

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Description

FIG. 1 is a perspective view of a spirometric computer embodying the design of my invention;

FIG. 2 is a side elevational view, the opposite side being similar;

FIG. 3 is a top view;

FIG. 4 is a front view;

FIG. 5 is a rear view.

Referenced Cited
U.S. Patent Documents
D220105 March 1971 Small
D229637 December 1973 Pun
D232436 August 1974 Goodale et al.
Patent History
Patent number: D260885
Type: Grant
Filed: Feb 23, 1979
Date of Patent: Sep 22, 1981
Inventor: William C. Jones (Oak Brook, IL)
Primary Examiner: Susan J. Lucas
Law Firm: Tilton, Fallon, Lungmus & Chestnut
Application Number: 6/14,424
Classifications
Current U.S. Class: D14/106; D24/17
International Classification: D1402; D2401;