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Publication numberUSD313568 S
Publication typeGrant
Application numberUS 07/306,650
Publication dateJan 8, 1991
Filing dateFeb 6, 1989
Publication number07306650, 306650, US D313568 S, US D313568S, US-S-D313568, USD313568 S, USD313568S
InventorsKal R. Castleberry, Ginger L. Castleberry
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Portable signalling device for monitoring telephone rings
US D313568 S
Abstract  available in
Images(2)
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Claims(1)
  1. The ornamental design for a portable signalling device for monitoring telephone rings, as shown and described.
Description

FIG. 1 is a front elevational view of a portable signalling device for monitoring telephone rings showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
USD761435 *Oct 10, 2013Jul 12, 2016DynaSense Inc.Probe for detection of biological signal
Classifications
U.S. ClassificationD10/106.1