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The ornamental design for a panel buttress, as shown and described. |
FIG. 1 is a fragmentary perspective view of a panel buttress showing our new design;
FIG. 2 is a fragmentary side elevational view;
FIG. 3 is a fragmentary top plan view;
FIG. 4 is an end elevational view; and
FIG. 5 is another perspective view thereof.
FIG. 6 is a perspective view of a second embodiment of a panel buttress showing our new design,
FIG. 7 is a fragmentary top plan view thereof.
FIG. 8 is a perspective view of a third embodiment of a panel buttress showing our new design;
FIG. 9 is a fragmentary top plan view thereof.
FIG. 10 is a perspective view of a fourth embodiment of a panel buttress showing our new design;
FIG. 11 is a fragmentary top plan view thereof.
FIG. 12 is an enlarged, fragmentary top perspective view of a buttress portion of our design.
FIG. 13 is a perspective view of a fifth embodiment of a panel buttress showing our new design;
FIG. 14 is a perspective view of a sixth embodiment of a panel buttress showing our new design.
King, Jonathan J., Wurth, Michael E., Kimura, Brian
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Aug 31 1989 | WURTH, MICHAEL E | Steelcase Inc | ASSIGNMENT OF ASSIGNORS INTEREST | 005153 | /0296 | |
Aug 31 1989 | KIMURA, BRIAN | Steelcase Inc | ASSIGNMENT OF ASSIGNORS INTEREST | 005153 | /0296 | |
Aug 31 1989 | KING, JONATHAN J | Steelcase Inc | ASSIGNMENT OF ASSIGNORS INTEREST | 005153 | /0296 | |
Sep 15 1989 | Steelcase Inc. | (assignment on the face of the patent) | / | |||
Jul 01 1999 | STEELCASE INC , A CORPORATION OF MICHIGAN | STEELCASE DEVELOPMENT INC , A CORPORATION OF MICHIGAN | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 010188 | /0385 |
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