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