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MA101
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Passage
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Latch bolt by knob/levers at all times
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MA531
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Apartment Corridor
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Latch bolt operated by knob/lever from either side, except when outside knob/lever is made inoperative by buttons in face. Dead bolt operated by key outside or turn inside. Key outside operates both bolts. Operating inside knob/lever retracts both bolts and outside remains locked. Latch bolt is deadlocked when outside knob/lever is made inoperative or when the dead bolt is projected. When dead bolt is retracted, knob/lever is unlocked by buttons in face.
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MA561
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Classroom
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Latchbolt operated by knob/lever from either side except when outside knob/lever is locked by key. When outside knob/lever is locked, latchbolt is retracted by key from outside or by operating inside knob/lever. Auxiliary latch deadlocks latchbolt when door is closed. Inside knob/lever always free for immediate exit.
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MA581
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Storeroom
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Latch bolt operated by key from outside or by operating inside knob/lever. Outside knob/lever is always inoperative. Auxiliary dead latch.
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