Point light source reading laser encryption holographic anti-counterfeiting gasket and preparation method thereof
The invention belongs to the technical field of anti-counterfeiting, and particularly relates to a point light source reading laser encryption holographic anti-counterfeiting gasket and a preparationmethod thereof. The laser encryption holographic anti-counterfeiting gasket includes a PET layer, an...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
21.08.2020
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Subjects | |
Online Access | Get full text |
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