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The ornamental design for a viewing window, as shown and described. |
FIG. 1 is a top plan view of a viewing window showing our new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a right side elevational view; the left side being a mirror image thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a top plan view of a second embodiment of a viewing window showing our new design;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a front elevational view thereof;
FIG. 9 is a right side elevational view, the left side being a mirror image thereof;
FIG. 10 is a rear elevational view thereof;
FIG. 11 is a right side elevational view of the viewing window in FIG. 4 with the cover raised; and
FIG. 12 is a right side elevational view of the viewing window in FIG. 9 with the cover raised.
Matsumoto, Chozo, Yonezawa, Tsuyoshi
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 18 1989 | Tsubakimoto Bulk Systems Corporation | (assignment on the face of the patent) | / | |||
Jul 04 1989 | MATSUMOTO, CHOZO | TSUBAKIMOTO BULK SYSTEMS CORPORATION A CORPORATION OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005845 | /0883 | |
Jul 04 1989 | YONEZAWA, TSUYOSHI | TSUBAKIMOTO BULK SYSTEMS CORPORATION A CORPORATION OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005845 | /0883 |
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