External unit for intercom

- Sharp Corporation
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Description

FIG. 1 is a top plan view of the external unit for intercom showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof; and

FIG. 6 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D282360 January 28, 1986 Yamagata et al.
Other references
  • HKE, 11/87, p. 141, Monitoring System.
Patent History
Patent number: D313594
Type: Grant
Filed: Jan 26, 1988
Date of Patent: Jan 8, 1991
Assignee: Sharp Corporation (Osaka)
Inventor: Shinichi Morooka (Osaka)
Primary Examiner: Bernard Ansher
Assistant Examiner: Terry A. Pfeffer
Law Firm: Flehr, Hohbach, Test, Albritton & Herbert
Application Number: 7/149,057
Classifications
Current U.S. Class: Intercom (7) (D14/159)