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UL 38

Manually Actuated Signaling Boxes for Use with Fire-Protective Signaling Systems
standard by Underwriters Laboratories, 01/01/1999

UL 2561

Standard for 1400 Degree Fahrenheit Factory-Built Chimneys
standard by Underwriters Laboratories, 01/22/2016

UL 2127

Inert Gas Clean Agent Extinguishing System Units
standard by Underwriters Laboratories, 05/09/2007

UL 1437

Electrical Analog Instruments – Panel Board Types
standard by Underwriters Laboratories, 12/12/2006

UL Subject 2049

Outline of Investigation for Residential Pipe Heating Cable (Outline, 6/21/2006)
standard by Underwriters Laboratories, 06/21/2006

UL 2524

Standard for In-building 2-Way Emergency Radio Communication Enhancement Systems
standard by Underwriters Laboratories, 10/19/2018