Dental handpiece

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Description

FIG. 1 is a bottom plan view of a dental handpiece showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a front end elevational view thereof, the rear being plain and unornamental.

Referenced Cited
U.S. Patent Documents
D255929 July 15, 1980 Austin, Jr.
D264876 June 8, 1982 Seid
D276936 December 25, 1984 Fattaleh
3014278 December 1961 Aymar et al.
4080737 March 28, 1978 Fleer
4619614 October 28, 1986 Baba et al.
4661060 April 28, 1987 Strohmaier
Foreign Patent Documents
797533 July 1958 GBX
Other references
  • "Dental Instruments", 1981, p. 41-Handpiece.
Patent History
Patent number: D310715
Type: Grant
Filed: Nov 22, 1989
Date of Patent: Sep 18, 1990
Assignee: Siemens Aktiengesellschaft (Berlin and Munich)
Inventors: Reinhard Straihammer (Heppenheim), Werner Schuss (Munich)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Hill, Van Santen, Steadman & Simpson
Application Number: 7/455,731
Classifications
Current U.S. Class: D24/12