What does schm stand for?

Schematic (VRA)

International Commission for a History of the Scientific and Cultural Developments of Mankind (BUAC)

Schematic (AAG)

Schiebout Manufacturing Company - NCIC trailer make code

Set Channel Monitor (SAUS)

Societe Canadienne d'Histoire de la Medecine - Canadian Society for the History of Medicine - CSHM

State Committee for Hydrometeorology (SAUS)

Schoolmaster - Navy - British