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Aadco, Inc. Patents |
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Assignee: Aadco, Inc.
Address: St. Paul, MN
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6175342 |
Enhanced modular message board |
January 16, 2001 |
| The present invention is a modular electronic sign having a plurality of display units assembled on a mounting track and connected to a sign controller. Each display unit has a circuit board having a plurality of light emitting diodes arranged in a pattern thereon. A microprocessor in |
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