Weston Instruments
Named as the FAA publishes it on its approvals.
Approved to make 3 classes of equipment. FAA spelling: Weston Instruments.
Equipment approvals technical standard order authorisations
TSO-C43 · Temperature Indicators · *, *, * · other and general
TSO-C49A · Electric Tachometer: Magnetic Drag (For Air Carrier Aircraft) · *, * · other and general
TSO-C47 · Pressure Instruments - Fuel, Oil, And Hydraulic · *, *, * · heating, ice protection and utility systems
Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.