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The ornamental design for a step block, substantially as shown and described.
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FIG. 1 is a perspective view of a step block having my new design;
FIG. 2 is a side view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a bottom view thereof; and,
FIG. 6 is a back view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Oct 12 2004 | Custom Precast & Masonry, Inc. | (assignment on the face of the patent) | / | |||
| Jul 30 2013 | CUSTOM PRECAST & MASONRY INC | DLK INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 032835 | /0589 |
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