Light unit for curing dental restorative materials

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Description

FIG. 1 is a perspective view of a light unit for curing dental restorative materials showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D224312 July 1972 Webb
D224709 September 1972 Coolidge
3943914 March 16, 1976 Grenfell et al.
4273535 June 16, 1981 Yamamoto et al.
4445858 May 1, 1984 Johnson
Patent History
Patent number: D280929
Type: Grant
Filed: Apr 28, 1982
Date of Patent: Oct 8, 1985
Assignee: 3M A/S (Glostrup)
Inventor: Gregers Lystager (Vedbaek)
Primary Examiner: A. Hugo Word
Law Firm: Pennie & Edmonds
Application Number: 6/372,566
Classifications
Current U.S. Class: D24/10; Hand-held, Body-attached Or Lantern Type (6) (D26/37)