Telephone line polarity tester
Description
FIG. 1 is a left and top-front perspective view of a telephone line polarity tester showing my new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a rear elevational view thereof.
Referenced Cited
Patent History
Patent number: D291071
Type: Grant
Filed: Mar 28, 1985
Date of Patent: Jul 28, 1987
Inventor: Randy J. Breil (Cypress, CA)
Primary Examiner: Nelson C. Holtje
Attorney: Dominick Nardelli
Application Number: 6/717,434
Type: Grant
Filed: Mar 28, 1985
Date of Patent: Jul 28, 1987
Inventor: Randy J. Breil (Cypress, CA)
Primary Examiner: Nelson C. Holtje
Attorney: Dominick Nardelli
Application Number: 6/717,434
Classifications
Current U.S. Class:
Provided With Handle, Or Hand-held (D10/78);
Element Or Attachment (4) (D10/103)
