磁石 じしゃく しき電話 でんわ ではありませんでした
jishakushiki denwakidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 磁石式電話機

1. Was not a magnetic telephone.; Was not a telephone using magnets.

Past/Perfective
Negative
Polite
Formal Register
Telecommunications