Telephone loop tester
Latest Independent Technologies, Inc. Patents:
Description
FIG. 1 is a bottom, front and left side perspective view of a telephone loop tester showing our new design;
FIG. 2 is a front elevational view;
FIG. 3 is a rear elevational view;
FIG. 4 is a top plan view;
FIG. 5 is a bottom plan view;
FIG. 6 is a right side elevational view; and
FIG. 7 is a left side elevational view thereof.
Referenced Cited
U.S. Patent Documents
D234603 | March 1975 | Snow et al. |
D242722 | December 14, 1976 | Bell |
D249658 | September 26, 1978 | Fields |
D254778 | April 22, 1980 | Kitada et al. |
D292493 | October 27, 1987 | King |
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3792205 | February 1974 | O'Dea |
4022987 | May 10, 1977 | O'Dea |
4292480 | September 29, 1981 | Sweatt |
4513179 | April 23, 1985 | Phillips et al. |
4536703 | August 20, 1985 | Jablway et al. |
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Patent History
Patent number: D318431
Type: Grant
Filed: Apr 10, 1989
Date of Patent: Jul 23, 1991
Assignee: Independent Technologies, Inc. (Omaha, NE)
Inventors: Dennis C. Blood (North St. Paul, MN), David L. Ingalsbe (Hastings, MN)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Attorneys: Anthony G. Eggink, Joel D. Skinner
Application Number: 7/335,984
Type: Grant
Filed: Apr 10, 1989
Date of Patent: Jul 23, 1991
Assignee: Independent Technologies, Inc. (Omaha, NE)
Inventors: Dennis C. Blood (North St. Paul, MN), David L. Ingalsbe (Hastings, MN)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Attorneys: Anthony G. Eggink, Joel D. Skinner
Application Number: 7/335,984
Classifications
Current U.S. Class:
Provided With Handle, Or Hand-held (D10/78)