Similar to 定山渓鉄道ED500形電気機関車

Cannone da 75/27 modello 11

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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

DEC Alpha

DECnet

Der Deutsche Correspondent

LM-57

101 series

JNR Class DF50