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The ornamental design for a retaining wall block, as shown and described. |
FIG. 1 is a top front perspective view of a retaining wall block of my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a side view of the right side thereof, the opposite side being a mirror image thereof;
FIG. 4 is a sectional view taken along the line 4--4 of FIG. 3;
FIG. 5 is a bottom view thereof;
FIG. 6 is a front elevational thereof;
FIG. 7 is a rear elevational view thereof;
FIG. 8 is a sectional view taken along the line 8--8 of FIG. 2;
FIG. 9 is a top front perspective view of a first modification of the retaining wall block of my new design;
FIG. 10 is a top plan view of FIG. 9;
FIG. 11 is a side view of right side of FIG. 10, the opposite side being a mirror image thereof;
FIG. 12 is a sectional view taken along the line 12--12 of FIG. 10;
FIG. 13 is a bottom view of FIG. 9;
FIG. 14 is a front elevational view of FIG. 9;
FIG. 15 is a rear elevational view of FIG. 9; and
FIG. 16 is a sectional view taken along the line 16--16 of FIG. 10.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 26 1987 | FORSBERG, PAUL J | KEYSTONE RETAINING WALL SYSTEMS, INC , 3101 WEST 69TH STREET, EDINA, MINNESOTA, A CORP OF MN | ASSIGNMENT OF ASSIGNORS INTEREST | 004738 | /0135 | |
Jun 08 1987 | Keystone Retaining Wall Systems, Inc. | (assignment on the face of the patent) | / | |||
Sep 15 1997 | KEYSTONE RETAINING WALL SYSTEMS, INC | U S BANK NATIONAL ASSOCIATION | SECURITY AGREEMENT | 008732 | /0302 | |
Dec 21 1999 | U S BANK NATIONAL ASSOCIATION | KEYSTONE RETAINING WALL SYSTEMS, INC | RELEASE BY SECURED PARTY SEE DOCUMENT FOR DETAILS | 011238 | /0432 |
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