Transmission impairment measuring instrument

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Description

FIG. 1 is a front view of an instrument of the present invention;

FIG. 2 is a front view of an instrument similar to the instrument shown in FIG. 1;

FIG. 3 is a top plan of the instruments shown in FIGS. 1 and 2;

FIG. 4 is a rear elevation of the instruments shown in FIGS. 1-3;

FIG. 5 is a left side elevation of the instruments shown in FIGS. 1-4;

FIG. 6 is a right side elevation of the instruments shown in FIGS. 1-5; and,

FIG. 7 is a bottom view of the instruments shown in FIGS. 1-6.

Referenced Cited
U.S. Patent Documents
D343799 February 1, 1994 Spinks et al.
D343800 February 1, 1994 Spinks et al.
D362845 October 3, 1995 Ito et al.
D377319 January 14, 1997 Amano et al.
Other references
  • Convex Brochure for a Transmission Test Set (Jun. 1994).
Patent History
Patent number: D391876
Type: Grant
Filed: Mar 20, 1996
Date of Patent: Mar 10, 1998
Assignee: Convex Corportion (Sterling, VA)
Inventor: James F. Turner (McLean, VA)
Primary Examiner: Antoine Duval Davis
Attorney: James Creighton Wray
Application Number: 0/51,948
Classifications
Current U.S. Class: Electrical Property (D10/75)
International Classification: 1004;