accordion fire doors with and without emergency egress; horizontal acting coiling and sliding fire doors; side acting coiling and sliding fire doors with and without emergency egress; overhead acting coiling and sliding fire doors with and without emergency egress; fire door operators with self-closing mechanism for use on side activated and overhead activated fire door assemblies

'accordion':1 'act':10,17,29 'activ':52,55 'assembl':58 'close':46 'coil':11,18,30 'door':3,15,22,34,41,57 'egress':8,27,39 'emerg':7,26,38 'fire':2,14,21,33,40,56 'horizont':9 'mechan':47 'oper':42 'overhead':28,54 'self':45 'self-clos':44 'side':16,51 'slide':13,20,32 'use':49 'without':6,25,37

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