The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

L.M.T. le Materiel Telephonique

Named as the FAA publishes it on its approvals.

Approved to make 2 classes of equipment. FAA spelling: L.M.T. Le Materiel Telephonique.

Equipment approvals technical standard order authorisations

TSO-C66A · Airborne Distance Measuring Equipment (For Air Carrier Aircraft) · * · other and general
TSO-C74B · Airborne Atc Transponder Equipment · *, *, * · instruments and avionics

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.