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Resolution: Classroom security with deadbolt - Latch bolt operated by knob/lever from either side except when outside knob/lever is locked from inside or outside by key. Dead bolt retracted by key from inside ...:

MA451

Resolution: Hotel guest lock - Latch bolt operated by key from outside or by operating inside knob/lever. Outside knob/lever is always inoperative. Dead bolt projected by turn from inside and all keys except e...:

MA521

Resolution: Entry/office lock - Latch bolt operated by knob/lever from either side except when outside knob/lever is made inoperative by buttons in face. When outside knob/lever is locked, latch bolt is retrac...:

MA531

Resolution: Apartment corridor door lock - 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 i...:

MA541

Resolution: Room door lock - Latch bolt operated by knob/lever from either side. Dead bolt operated by key from outside or turn from inside.:

MA551

Resolution: Holdback lock - Latch bolt operated by lever from either side except when outside lever is locked from outside by key. Latch bolt can be locked in a retracted position by key. When outside lever is...:

MA561

Resolution: Classroom lock - Latch bolt operated by knob/lever from either side except when outside knob/lever is locked from outside by key. When outside knob/lever is locked, latch bolt is retracted by key f...:

MA571

Resolution: Dormitory or exit lock - Latch bolt operated by knob/lever from either side. Dead bolt projected by key from outside and turn from inside. Operating inside knob/lever retracts both bolts and unlock...:

MA581

Resolution: Storeroom lock - Latch bolt operated by key from outside or by operating inside knob/lever. Outside knob/lever is always inoperative. Auxiliary dead latch.:

MA621

Resolution: Front door apartment corridor - Latch bolt is operated by knob/lever from either side, except when outside knob/lever is made inoperative by buttons in face. Dead bolt is operated by turn inside. K...: