79182R, H04M 105
A light weight operator's headset includes a generally cylindrical housing in which is disposed a receiver transducer, and an arm pivotally joined to one end of the housing. Secured to the arm is a microphone transducer, from which a sound conductive tube extends in a pivotally and extensibly adjustable fashion to the operator's mouth. An arcuate resilient member extends obliquely from the housing to define a slot therebetween in which the outer ear is received to thereby support the headset. A channel in the arcuate member receives the conductors which extend to their respective transducers.
patent: D237090 (1975-10-01), Yanagawa
patent: 3440365 (1969-04-01), Bryant et al.
patent: 3524951 (1970-08-01), Bernardi et al.
patent: 3555207 (1971-01-01), Cech
Cooper William C.
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