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			 The ornamental design for an offset pin for interconnecting upper and lower blocks in a concrete block wall, as shown and described.  | 
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FIG. 1 is a perspective view of an offset pin for interconnecting upper and lower blocks in a concrete block wall showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a right side elevational view thereof, the opposite side view being a mirror image thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a front elevational view thereof; and,
FIG. 6 is a rear elevational view thereof.
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| 5044834, | Jul 26 1990 | ANCHOR WALL SYSTEMS, INC | Retaining wall construction and blocks therefor | 
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Jan 03 1991 | Wedgerock Corporation | (assignment on the face of the patent) | / | |||
| Mar 25 1991 | HODEL, GERALD W | Wedgerock Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 005648 | /0665 | 
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