What does NOH stand for?

Chicago, IL - Location identifier - FAA (FAAL)

Night Observation Helicopter (MCD)

Nitric Oxide ferro-Hemochrome (SAUS)

Noah Navigation Co., Fort Lauderdale, FL - Manufacturer code for watercraft hull identification number (USCG)

Nomu - Language code (ETLW)

Nordhorn - German license plate city code

University of North Carolina, Health Science Library, Chapel Hill, NC - OCLC symbol (OCLC)