Test tube rack

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Description

FIG. 1 is a perspective view of the test tube rack incorporating the teaching of the present invention;

FIG. 2 is a top plan view of one embodiment of the test tube rack;

FIG. 3 is a front view of the test tube rack;

FIG. 4 is a side elevational view of the test tube rack;

FIG. 5 is a rear view of the test tube rack.

Referenced Cited
U.S. Patent Documents
D208192 August 1967 Seymour
D223758 June 1972 Berg
D240239 June 1976 Calandrino
3379315 April 1968 Broadwin
3390783 July 1968 Quackenbush, Jr.
3751172 August 1973 Seitz
Patent History
Patent number: D250348
Type: Grant
Filed: Mar 3, 1977
Date of Patent: Nov 21, 1978
Assignee: American Hospital Supply Corporation
Inventors: Michael Frangiosa (Chaddsford, PA), William McMichael (Haddon Heights, NJ)
Primary Examiner: Bernard Ansher
Attorney: Y. Judd Azulay
Application Number: 5/773,981
Classifications
Current U.S. Class: D24/32; D 6/85
International Classification: D0604; D2402;