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School and education glyph icons set. Alarm clock, school bell, lunch box, open book. Vector white silhouettes illustrations in black circles 3762461 Vector Art at Vecteezy
SH Security Systems - Bell box with backlight to standout at night #alarm #pyronix #isteadrise #gravesend #security | Facebook
A6BM-12DC | Moflash A6BM Series Surface Mount Electronic bell, 12 V dc, 106dB at 1 m, IP66, DC, Single-Tone | RS
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