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The ornamental design for a central control unit for an alarm system, as shown and described. |
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FIG. 1 is a front elevation view of a central control unit for an alarm system showing our new design;
FIG. 2 is a right side elevation view thereof, the left side being a mirror image;
FIG. 3 is a rear elevation view thereof.
FIG. 4 is a top plan view thereof.
FIG. 5 is a bottom plan view thereof.
FIG. 6 is a front perspective view thereof.
Chen, Kent, Schwarz, Frank, Nielson, Richard H.
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| 218439, | |||
| 236445, | |||
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 20 1985 | SCHWARZ, FRANK | NATIONAL INDUSTRIAL SECURITY CORP , A CORP OF MISSOURI | ASSIGNMENT OF ASSIGNORS INTEREST | 004730 | /0008 | |
| Jan 30 1986 | NIELSON, RICHARD H | NATIONAL INDUSTRIAL SECURITY CORP , A CORP OF MISSOURI | ASSIGNMENT OF ASSIGNORS INTEREST | 004730 | /0009 | |
| Feb 12 1986 | National Industrial Security Corp. | (assignment on the face of the patent) | / | |||
| Jan 14 1988 | CHEN, KENT | NATIONAL INDUSTRIAL SECURITY CORP , A CORP OF MISSOURI | ASSIGNMENT OF ASSIGNORS INTEREST | 004824 | /0777 |
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