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

Delta Electronic Mfrg. CO.

Named as the FAA publishes it on its approvals.

Approved to make 6 classes of equipment. FAA spelling: Delta Electronic Mfrg. Co..

Equipment approvals technical standard order authorisations

TSO-C36C · Ils Localizer Receiving Equipment · * · other and general
TSO-C59 · Airborne Selective Calling Equipment · * · other and general
TSO-C74C · Airborne Atc Transponder Equipment · *, *, * · instruments and avionics
TSO-C40A · Vor Radio Receiving Equipment · *, *, * · instruments and avionics
TSO-C38B · Vhf Radio Communications Receiving Equipment Operating Within 117.975 To 136.000 Megahertz · * · instruments and avionics
TSO-C37B · Vhf Radio Communications Transmitting Equipment Operating Within The Radio Frequency... · * · 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.