Daltone

Daltone Opti-Cal1. Mar 12.

Daltone Pocket 80 (US made).

Dantron

DataCal II

Data Brain

Data Brain II. Calculators labelled on back either "Unifive 301, Manufactured in U.S.A. by Unifive Industries Corporation", or "Manufactured in Hong Kong by American Merchants Corporation, Calfax Division" .

Decimo (Euro marketing company)

Decimo 2001-e. Featured British calculator..

Decimo Da Vinci. Featured British calculator.

Decimo Handy. Featured British calculator. Dec 11.

Decimo Handy M. Featured British calculator.

Decimo International - type 1. Featured British calculator.

Decimo International - type 2. Featured British calculator.

Decimo Memory Man. Featured British calculator.

Decimo Memory Man II. Featured British calculator.

Decimo Ready Reckoner. Featured British calculator.

Laltex MD2888M, Decimo Super Vatman, Sinclair Cambridge Scientific

Decimo Super Vatman M. Featured British calculator.

Decimo Super Vatman SS I. Featured British calculator.

Decimo Super Vatman SS II. Featured British calculator.

Decimo Super Vatman V.Sc. I. Featured British calculator.

Decimo Vatman (type 1). Featured British calculator.

Decimo Vatman (type 2). Featured British calculator.

Decimo Vatman Boss aka Vatman Memory. Featured British calculator.

Decimo Vatman Executive Type 1 (with red LED display), inside. Featured British calculator.

Decimo Vatman Executive Type 2 (with green VFD display) Version 1, Version 2. Featured British calculator.

Decimo Vatman Extra M. Featured British calculator.

Decimo Vatman Extra S. Featured British calculator.

Decimo Vatman Memory. Featured British calculator.

Decimo Vatman Mini. Featured British calculator.

Decimo Vatman Mini II. Featured British calculator.

Decimo Vatman Mini M. Featured British calculator.

Decimo Vatman Mini M II. Featured British calculator.

Decimo Vatman Mini Office.

Decimo Vatman Mini Office II. Details.

Decimo Vatman Popular. Featured British calculator.

Decimo Vatman Scientific. Featured British calculator.

Decimo Vatman Spy. Featured British calculator.

Decimo Vatman Student. Featured British calculator.

Decimo Vatman Super Spy. Featured British calculator.

Decimo Vatman V.Sc. I. Featured British calculator.

Decimo Vatman V.Sc. II. Featured British calculator.

Decimo Vatman X. Featured British calculator.

Deetee

Deetee ECL-81, inside (similar to Xonex Executive). Details .

demitronics (Japanese company)

demicom 800-X. Details.

Detron (Euro marketing company ?)

Detron 805MD, made in Korea

Detson Euro-market

Detson 505. Details. Jan 12.

Detson E406

Detson E408. Details.

Detson E427. Details.

Detson E501. Details.

Dictaphone

Dictaphone 1680 and SCM Marchant 1 (very early hand-held calculators, winter 1970-71)

Digicomp (U.S. company)

Digicomp Metricmaster. Details.

Digi-matic - See Sears

dsc

dsc CAL-0041. Featured calculator.

Dynson (Euro-marketing company)

Dynson F-81. Details.

Dynson F-85. Details.