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

Dallwig Barry C

Holds 4 approved modifications, most of them for the Bell 47. FAA spelling: Dallwig Barry C.

Approved modifications 4 · newest first

2001-03-15SH201WE · Installation of stirrup assemblies to directional control pedals for operation by handicapped pilot. (US ARMY OH-13E 205A) · UH-1B, 204B, 205A-1
2001-03-15SH188WE · Installation of stirrup assemblies. · 206A, 407, 206B
1977-04-14SH199WE · Installation of stirrup assemblies to directional control pedals for operation by handicapped pilot. · 47J-2A, 47J, 47J-2
1977-04-14SH200WE · Installation of stirrup assemblies to directional control pedals for operation by handicapped pilot. · 47, 47G Series, 47B

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.