Covered test tube

- Greiner Electronic AG

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Description

FIG. 1 is an exploded perspective view of the covered test tube with the parts disassembled;

FIG. 2 is a side elevation of the covered test tube in an assembled condition;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a bottom plan view of the cover member; and

FIG. 6 is a sectional view of the cover member taken along line 6--6 of FIG. 1.

Referenced Cited
U.S. Patent Documents
D222352 October 1971 Ferro et al.
D229748 January 1974 White
D232355 August 1974 Wiedmann
3828961 August 1974 Lewis
3898046 August 1975 Ikeda et al.
Other references
  • Fisher Modern Lab. Appliances, Cat. No. 65, c. 1964, p. 945, Tube, Item No. 14-959-10.
Patent History
Patent number: D244555
Type: Grant
Filed: Sep 19, 1975
Date of Patent: May 31, 1977
Assignee: Greiner Electronic AG (Langenthal)
Inventor: Gerhard Wiedmann (Butzberg)
Primary Examiner: Bernard Ansher
Attorney: Lawrence E. Laubscher
Application Number: 5/615,070
Classifications
Current U.S. Class: D24/23
International Classification: D2402;