Similar to 呂号第五十六潜水艦_(2代)

Obice da 210/22

Cannone da 75/27 modello 06

Cannone da 75/27 modello 11

Cannone da 75/32 modello 37

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

SS Ideal X

USS Amsterdam (CL-101)

USS Argonaut (SS-475)

USS Antietam (CV-36)

Japanese submarine I-14

Japanese submarine I-401

Japanese submarine I-402

Japanese aircraft carrier Ikoma

USS Vella Gulf (CVE-111)