Similar to 学園浸透スパイ団事件

Darwin Information Typing Architecture

Dasher (software)

Data Encryption Standard

German Equipment Works

Belyayev DB-LK

Dbx (noise reduction)

Douglas DC-1

Douglas DC-4E

Douglas DC-7

JNR Class DE10

DEC Alpha

DECnet

Der Deutsche Correspondent

DF-31

DFS 228

1975 Asian Baseball Championship

1975 Asian Athletics Championships

1975 South Korean constitutional referendum

Overseas National Airways Flight 032

Expo '75