Intercom door answering unit
Latest Electron Corporation (Aust.) Pty. Ltd. Patents:
Description
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.
Referenced Cited
U.S. Patent Documents
Other references
| D279471 | July 2, 1985 | Nakashima |
| D282360 | January 28, 1986 | Yamagata et al. |
| D283130 | March 25, 1986 | Boenning |
| 3453390 | July 1969 | Durkee et al. |
| 4518826 | May 21, 1985 | Caudill et al. |
| 4584436 | April 22, 1986 | Boenning et al. |
- Radio Shack 1983 Catalog, p. 109, top left of page.
Patent History
Patent number: D289754
Type: Grant
Filed: Jun 11, 1984
Date of Patent: May 12, 1987
Assignee: Electron Corporation (Aust.) Pty. Ltd.
Inventor: Gunter H. Koob (East Malvern)
Primary Examiner: Bernard Ansher
Assistant Examiner: Theodore M. Shooman
Law Firm: Griffin, Branigan & Butler
Application Number: 6/619,469
Type: Grant
Filed: Jun 11, 1984
Date of Patent: May 12, 1987
Assignee: Electron Corporation (Aust.) Pty. Ltd.
Inventor: Gunter H. Koob (East Malvern)
Primary Examiner: Bernard Ansher
Assistant Examiner: Theodore M. Shooman
Law Firm: Griffin, Branigan & Butler
Application Number: 6/619,469
Classifications
Current U.S. Class:
D14/92
