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The ornamental design for a concrete construction block, as shown and described. |
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FIG. 1 is a frontal isometric view of a preferred embodiment of my new concrete construction block,
FIG. 2 is a front plan view of the preferred embodiment; and,
FIG. 3 is a left end elevational view of the preferred embodiment, the opposite end comprising a mirror image.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 17 2001 | WINTERS, GERALD D | NETTLETON CONCRET WORKS, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 011518 | /0732 | |
| Feb 02 2001 | Nettleton Concrete Works, Inc. | (assignment on the face of the patent) | / |
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