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Patent
   D255564
Priority
Aug 24 1978
Filed
Feb 21 1979
Issued
Jun 24 1980
Expiry
Jun 24 1994
Inventors
Brooksby, …
Assg.orig
Assg.curr
Entity
unknown
Referenced by
7
References
3
Maint.:
n/a
The ornamental design for a hand operated control unit, substantially as shown and described.

The FIGURE is a top perspective view of a hand operated control unit showing our new design, the bottom being flat and plain.
INVENTORS:

Brooksby, Brian T., Murray, Harold J., Simpson, Anthony, Peterkin, Stuart M.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D306998, Dec 12 1988 SERVO PRODUCTS COMPANY, 433 NORTH FAIROAKS AVENUE, PASADENA, CA 91103, A CORP OF CA Motor control pendant
D388769, Sep 20 1996 Clark Equipment Company Compressor control panel
D453743, May 26 2000 Urawa Kohgyo Co., Ltd. Controller for handpiece
D572192, Oct 15 2007 Zhejiang New Mainland Machinery Co., Ltd. Control panel for generator
D612814, Nov 15 2007 URAWA KOHGYO CO , LTD Controller for handpiece
D948460, Jul 03 2020 PUC PERFECT UNION CO., LTD. Electric fan controller
D963594, Jan 29 2021 DEKA Products Limited Partnership Toggle switches
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2451150,
2832849,
3544738,
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