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The ornamental design for a propeller guard of an aircraft, as shown and described.
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The broken lines in
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Dec 08 2020 | KIM, HAK YOON | HANSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 054947 | /0507 | |
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Jan 19 2021 | Metro Air inc. | (assignment on the face of the patent) | / | |||
Apr 19 2022 | HANSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION | METRO AIR INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 059703 | /0144 |
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