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The ornamental design for a ball-operated control device for electronic circuits, as shown and described. |
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FIG. 1 is a perspective view of a ball-operated control device for electronic circuits showing my new design;
FIG. 2 is a top plan view of the device;
FIG. 3 is a bottom plan view of the device;
FIG. 4 is a side elevational view of the device;
FIG. 5 is a front elevational view of the device; and,
FIG. 6 is a rear elevational view of the device.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Nov 11 1991 | BARRETT, JOHN B | APPOINT A CA CORPORATION | ASSIGNMENT OF ASSIGNORS INTEREST | 005911 | /0268 | |
| Nov 13 1991 | Appoint | (assignment on the face of the patent) | / | |||
| Jan 26 1994 | RENAISSANCE CAPITAL PARTNERS, LTD | APT, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007015 | /0227 | |
| Jan 26 1994 | BARRET, JOHN B AND DIANA BARRETT | APT, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007015 | /0227 |
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