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Publication numberUSD332661 S
Publication typeGrant
Application numberUS 07/501,502
Publication dateJan 19, 1993
Filing dateMar 30, 1990
Publication number07501502, 501502, US D332661 S, US D332661S, US-S-D332661, USD332661 S, USD332661S
InventorsPaul B. Sweeney, Jr.
Original AssigneeWelch Allyn, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Spirometer base unit
US D332661 S
Abstract  available in
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  1. The ornamental design for a spirometer base unit, as shown and described.

FIG. 1 is a perspective view of a spirometer base unit showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a back elevational view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof.

U.S. ClassificationD24/169