"The UHF connector, also sometimes known as the
Amphenol coaxial
 connector was designed in the 1930s by a designer in the Amphenol
 company for use as an RF connector in the radio industry. The UHF
 connector was initially intended for use as a video connector for
 radar equipment, but it later became used in a variety of RF
 applications." 
Hmmm...are yopu/they/we confusing this with the earlier UHF connector, the 93M?
Those are indeed late 1930s.
--
Will