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

Hamilton Instruments INC

Holds 5 approved modifications, most of them for the Bell 206 JetRanger and LongRanger. FAA spelling: Hamilton Instruments Inc.

Approved modifications 5 · newest first

Bell 206 JetRanger and LongRanger 1Lockheed 1329 1
1979-11-27SH4061SW · Install ruggedized attitude gyro and related vacuum system components. · 206B-1, 206B, 206A-1 (OH-58A)
1964-07-02SA407SW · Installation of the Hamilton aural overspeed warning system type HF-100VM. · Viscount 744, Viscount 745D
1964-06-03SA379SW · Installation of the Hamilton Co Type HF-V overspeed warning system. · Viscount 810
1964-05-11SA394SW · Installation of the Hamilton type HF-G overspeed warning system. · G-159
1960-01-01SA302SW · HF-1 and HF-LM overspeed warning system. · 1329 Series

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.