Dental hygiene teaching apparatus or the like

Description

FIG. 1 is a front perspective view of a dental hygiene teaching apparatus showing my new design;

FIG. 2 is a side elevational view thereof.

FIG. 3 is an end elevational view.

FIG. 4 is a rear perspective view thereof.

FIG. 5 is a plan view thereof.

FIG. 6 is an end elevational view thereof.

Referenced Cited
U.S. Patent Documents
3740854 June 1973 Black
Patent History
Patent number: D247503
Type: Grant
Filed: Sep 29, 1975
Date of Patent: Mar 14, 1978
Inventor: William C. Hoisington (Seattle, WA)
Primary Examiner: Melvin B. Feifer
Attorney: David L. Garrison
Application Number: 5/617,669
Classifications
Current U.S. Class: Demonstrator Or Exhibitor (10) (D19/62)
International Classification: D1907;