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Two strobes from different manufacturers
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490 L'Enfant Plaza pull station
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Simplex TrueAlert at Mars Supermarket
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Simplex pull station at Martinsburg train station
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Fire alarm at Montgomery College [02]
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Fire alarm at Montgomery College [03]
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Fire alarm at Montgomery College [01]
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Fire alarm at Montgomery College [04]
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Autocall pull station at Whole Foods Market in Towson, Maryland [02]
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Autocall pull station at Whole Foods Market in Towson, Maryland [03]
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Autocall pull station at Whole Foods Market in Towson, Maryland [04]
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Autocall pull station at Whole Foods Market in Towson, Maryland [01]
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Federal Signal Model 5 siren on the Hanover Street Bridge
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Wheelock fire alarm speaker at Sears in Frederick, Maryland [01]
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Wheelock fire alarm speaker at Sears in Frederick, Maryland [02]
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Vintage fire alarm at the Dakota