通信 つうしん制御 せいぎょ装置 そうちじゃなかったです
tsūshinseigyosōchijanakattadesu

Noun
Desu Copula

The polite, past negative form of 通信制御装置

1. Was not a communication control device.; Wasn't a communication control device.

Past/Perfective
Negative
Polite
Casual Register
Computing