Intercom master control unit
Latest Electron Corporation (AUST.) Pty. Ltd. Patents:
Description
FIG. 1 is a top perspective view of an intercom master control unit showing my new design; and
FIG. 2 is a bottom perspective view thereof.
Referenced Cited
U.S. Patent Documents
Other references
| D244877 | June 1977 | McLaughlin |
| D269780 | July 19, 1983 | Doodson |
| D274518 | July 3, 1984 | Doodson |
| D278054 | March 19, 1985 | Vajdaffy |
| D281500 | November 26, 1985 | Yamagata et al. |
| D281501 | November 26, 1985 | Yamagata et al. |
| 4019139 | April 19, 1977 | Ortega |
- Radio Shack 1983 Catalog, p. 107, bottom of page.
Patent History
Patent number: D289758
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: 6/619,242
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: 6/619,242
Classifications
Current U.S. Class:
D14/92
