UL-1638 › Complete Document History
Visible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories
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6TH EDITION - Visible Signaling Devices for Fire Alarm and Signaling Syste - April 27, 2023
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Obsolete Revision Information: |
CHANGE 09/17 - REVISION CHANGE - CODE A - Sept. 6, 2017
5TH EDITION - Visible Signaling Devices for Fire Alarm and Signaling Syste - Jan. 28, 2016
CHANGE 10/13 - REVISION CHANGE - CODE A - Oct. 11, 2013
CHANGE 10/08 - REVISION CHANGE - CODE A - Oct. 10, 2008
CHANGE 11/03 - REVISION CHANGE - CODE A - Nov. 7, 2003
CHANGE 05/03 - REVISION CHANGE - CODE A - May 7, 2003
4TH EDITION - VISUAL SIGNALING APPLIANCES - - April 11, 2001
3RD EDITION - VISUAL SIGNALING APPLIANCES - May 31, 1995
1990 EDITION - VISUAL SIGNALING APPLIANCES - Jan. 1, 1990
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