Assertion: electric guitar's design | /r/CapableOf | release to public domain
Facets:
value: in the 1930s
type: TEMPORAL
value: by western electric
type: OTHER
Source sentences:
text: As a qualified electronics technician, Fender had repaired radios, phonographs, home audio amplifiers, public address systems and musical instrument amplifiers, all designs based on research developed and released to the public domain by Western Electric in the 1930s using vacuum tubes for amplification.
text: As a qualified electronics technician, Fender had repaired radios, phonographs, home audio amplifiers, public address systems and musical instrument amplifiers, all designs based on research developed and released to the public domain by Western Electric in the 1930s using vacuum tubes for amplification.