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The ornamental design for window cleaner, as shown and described. |
FIG. 1 is a bottom perspective view of a window cleaner, showing my new design;
FIG. 2 is a top perspective view thereof;
FIG. 3 is a bottom perspective view of the scraper blade portion of the window cleaning device, shown with the handle omitted for completeness of disclosure;
FIG. 4 is a top perspective view thereof;
FIG. 5 is a bottom perspective view of the handle portion of the window cleaning device, shown with the scraper blade omitted for completeness of disclosure;
FIG. 6 is a top perspective view thereof; and
FIG. 7 is a side elevational view of the window cleaning device as it appears in FIGS. 1 and 2.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 16 1981 | BERGSTROM ARNE | Swish AB | ASSIGNMENT OF ASSIGNORS INTEREST | 003854 | /0506 | |
Mar 02 1981 | Swish AB | (assignment on the face of the patent) | / |
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