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Publication numberUSD289754 S
Publication typeGrant
Application numberUS 06/619,469
Publication dateMay 12, 1987
Filing dateJun 11, 1984
Priority dateFeb 23, 1984
Publication number06619469, 619469, US D289754 S, US D289754S, US-S-D289754, USD289754 S, USD289754S
InventorsGunter H. Koob
Original AssigneeElectron Corporation (Aust.) Pty. Ltd.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Intercom door answering unit
US D289754 S
Abstract  available in
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  1. The ornamental design for an intercom door answering unit, as shown.

FIG. 1 is a top perspective view of an intercom door answering unit showing my new design; and

FIG. 2 is a bottom perspective view thereof.

Non-Patent Citations
1Radio Shack 1983 Catalog, p. 109, top left of page.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
USD666988 *May 19, 2011Sep 11, 2012S. Siedle & Soehne, Telefon—und Telegrafenwerke OhgCommunication device
U.S. ClassificationD14/159, D14/219