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The ornamental design for a ventilation apparatus, as shown and described.
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FIG. 1 is an upper side perspective view of a ventilation apparatus in accordance with our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 a rear elevation view thereof;
FIG. 4 is a right-side elevation view thereof;
FIG. 5 is a left-side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jul 29 2005 | LERCHE, ULRICH | STEGO-Holding GmbH | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016464 | /0569 | |
Jul 29 2005 | DENT, ROBERT | STEGO-Holding GmbH | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016464 | /0569 | |
Aug 01 2005 | STEGO-Holding GmbH | (assignment on the face of the patent) | / |
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