Patent
   D256566
Priority
Jul 27 1978
Filed
Jul 27 1978
Issued
Aug 26 1980
Expiry
Aug 26 1994
Assg.orig
Entity
unknown
3
6
n/a
The ornamental design for alarm system tester, as shown and described.

FIG. 1 is a top front perspective view of an alarm system tester showing our new design, with the cover in an open position;

FIG. 2 is a bottom and left rear perspective view thereof with the cover closed;

FIG. 3 is a top plan view thereof, with the cover closed;

FIG. 4 is a rear elevational view thereof, with the cover closed;

FIG. 5 is a left side elevational view thereof with the cover closed.

Zephir, Henry K., Wilson, Winthrop E.

Patent Priority Assignee Title
D276028, Apr 21 1981 The Superior Electric Company Line voltage monitor system
D299439, Oct 15 1985 Insulator tester unit
D697442, Oct 01 2012 WilliamsRDM, Inc Compact aircraft system tester
Patent Priority Assignee Title
3428888,
3986106, Mar 31 1975 Portable set for automatic sequential test of multiple wire pairs
194677,
202702,
202922,
238562,
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