|
The ornamental design for an intercommunication unit, as shown and described. |
FIG. 1 is a front elevational view of the intercommunication unit showing our new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left side elevational view thereof, the right side being a mirror image thereof;
FIG. 4 is a plan view thereof; and
FIG. 5 is a bottom view thereof.
Yamagata, Hiroshi, Makihara, Kendo
Patent | Priority | Assignee | Title |
D286776, | Dec 06 1984 | Nortel Networks Limited | Telephone set base |
D289754, | Feb 23 1984 | Electron Corporation (Aust.) Pty. Ltd. | Intercom door answering unit |
D307273, | May 13 1987 | TUNSTALL INTEGRATED HEALTH & CARE LIMITED | Speech module for an intercommunication system |
D313592, | Jul 30 1987 | Sharp Corporation | External unit for intercom |
D313593, | Jul 30 1987 | Sharp Corporation | Outside unit for intercom |
D313594, | Jul 30 1987 | Sharp Corporation | External unit for intercom |
D838201, | May 01 2017 | Pyreos Limited | Pyroelectric detector |
D848296, | May 01 2017 | Pyreos Limited | Pyroelectric detector |
Patent | Priority | Assignee | Title |
3916103, | |||
232226, | |||
238186, | |||
D247174, | Feb 03 1976 | AG COMMUNICATION SYSTEMS CORPORATION, 2500 W UTOPIA RD , PHOENIX, AZ 85027, A DE CORP | Housing for a loudspeaking telephone |
D269432, | Jul 07 1980 | Bell Telephone Laboratories, Incorporated | Housing for a telephone amplifier |
D274518, | Sep 04 1981 | U.S. Philips Corporation | Intercommunication apparatus |
D275753, | Sep 15 1981 | Mitel Corporation | Combined telephone inter communication and automatic telephone dialing device |
D277098, | Apr 09 1984 | SALTON, INC | Radio |
D277282, | Mar 17 1982 | AT&T Bell Laboratories | Conference telephone microphone control unit |
DE2305488, |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 18 1983 | YAMAGATA, HIROSHI | SHARP KABUSHIKI KAISHA, OSAKA, JAPAN, A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004134 | /0588 | |
May 18 1983 | MAKIHARA, KENDO | SHARP KABUSHIKI KAISHA, OSAKA, JAPAN, A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004134 | /0588 | |
May 25 1983 | Sharp Corporation | (assignment on the face of the patent) | / |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |