電気 でんき蓄音 ちくおん ではありませんでした
denkichikuonkidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 電気蓄音機

1. Was not a phonograph.; Was not an electric record player.

Past/Perfective
Negative
Polite
Formal Register