Atomic absorption spectrophotometer

- Hitachi, Ltd.
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Description

FIG. 1 is a front, top and left side perspective view of a atomic absorption spectrophotometer showing our new design;

FIG. 2 is front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D191111 August 1961 Haynes et al.
D202340 September 1965 Staunton
D209823 January 1968 Waligorski et al.
D211634 July 1968 Derkas et al.
D258273 February 17, 1981 Collister et al.
D266404 October 5, 1982 Boldak
D276315 November 13, 1984 Collister
D282724 February 25, 1986 Collister et al.
D298854 December 6, 1988 Kame et al.
4241998 December 30, 1980 Farkas et al.
Patent History
Patent number: D307398
Type: Grant
Filed: Jul 7, 1987
Date of Patent: Apr 24, 1990
Assignee: Hitachi, Ltd. (Tokyo)
Inventors: Shouji Umemoto (Kodaira), Masamichi Tsukada (Ibaragi), Masatoshi Kitagawa (Mito)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Antonelli, Terry & Wands
Application Number: 7/70,536