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The ornamental design for a projection lamp, as shown and described.
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The broken lines, shown in the drawings depict portions of the projection lamp in which the design is embodied that form no part of the claimed design.
| Patent | Priority | Assignee | Title |
| 206610, | |||
| D474301, | Jul 31 1998 | Mathmos, Ltd. | Projector lamp |
| D805679, | Aug 08 2016 | Light | |
| D821633, | May 22 2017 | Laser light | |
| D854226, | Jul 05 2017 | Projection lamp | |
| D858861, | Sep 21 2017 | Projection lamp | |
| D879343, | Dec 12 2018 | Head lamp | |
| D891683, | Jan 07 2019 | Jun, Wei | Projection lamp |
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