Similar to ゲオルク・ハインリッヒ・フォン・ラングスドルフ

D-10 tank gun

Douglas D-558-1 Skystreak

Lockheed D-21

D101/102 Beijing–Harbin through train

D27/28 Beijing–Harbin through train

Douglas D-558-2 Skyrocket

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

JNR Class DE10

DEC Alpha

Duke Adolf Friedrich of Mecklenburg

Gustav Wallis

Georg Adolf Erman

Gustav Adolf von Götzen

Adolf Schlagintweit

Robert Hermann Schomburgk

Gustav Nachtigal