black line chalkboard icon isolated seamless pattern green background school blackboard sign vector |
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| navigate by keyword : art back background banner billboard blackboard blank board business chalk chalkboard class classroom concept contour copy design dirty education empty flat frame graphic green icon illustration inches isolated learning lesson line linear lineart object old outline pattern retro school seamless sign space study teacher template university vector wood wooden write |
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| Black line Chalkboard icon isolated seamless pattern on green background. School Blackboard sign. Vector. |
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