Mechanical Calculators Manufacturer Database


Total brands in database (14 June 2024) : 1345
Corresponding brands from query : 64

Selection by country
Types legend & selection
Addiators (A)
Differential (D)
Electrical (E)
Mechanical (M)
Slide-rules (S)
Undefined (?)

Brand/Manufacturer


Brand
Manufacturer
Origin
First
Last
Type
Info
H
H. Morin
FRA
-
-
S
H. Oehlmann & Co.
GER
1913
-
M
H.C. Lange
GER
-
-
S
H.R. Potter
UK
>1949
-
SP
HABS
SPA
-
-
A
Hachette
FRA
1852
-
S
Haenni
SWI
1960s
-
SP
Hahn, Phillip Matthäus
GER
1774
1776
A
-
Haiou Pai
CHN
-
-
S
Halden, Joseph
UK
-
-
S
Hallmark
Puretec Inc., Tokyo Electric Co.
JAP
>1950
-
E
-
Hamann
DeTeWe, Hamann-Rechenmaschinen GmbH
GER
1958
-
M
-
Hamann Mathematisch-mechanisches Institut
GER
1896
1916
A
Hamann-Manus
DeTeWe
GER
1925
1970
M
Hammenstede, Eduard
GER
1882
-
M
-
Hannovera Rechenmaschinrnfabrik, Oventrop, Heutelbeck und Co.
GER
1921
1956
M
Hannyngton, John Caufield
UK
-
-
S
Hansa-Technik GmbH
GER
-
-
S
-
Hanseatic
?
>1950
-
E
-
Hardmuth
UK
~1940
-
S
Harmon
?
-
1925
M
-
Hart, William
USA
1878
-
M
-
Hartree, Douglas / Porter, Arthur
Manchester University
UK
1934
-
D
Hasbro
USA
-
-
A
-
Hayes
?
-
-
M
-
Heath & Co.
UK
1960s
-
SP
Hebecker & Taetzel
GER
1954
-
M
-
Hedberg, Donald D.
USA
>1955
-
SP
Heine & Sohn KG
GER
1971
-
M
Heinevetter
GER
1975
-
S
Heinitz, Woldemar
GER
-
-
M
Heiwa Seimitsu Co., Ltd.
JAP
1970s
-
E
-
Helios
?
-
-
M
-
Helix
UK
~1970
-
S
Hellerman
DEN
-
-
S
-
Hellström, J.F.
SWE
1879
-
A
-
Hemmi Jirou & Co.
JAP
1895
1973
S
Henschel
USA
-
-
S
Hermes
Precisa AG, Hermes-Precisa
GER
1950s
-
M, E
-
Hermes-Precisa International AG
GER
>1960
1969
E
Herring Computing Machine
USA
1918
-
M
-
Heureka
A.G. für Techn. Industrie
SWI
1907
-
M
Hewig
USA
-
-
A
-
Hexco Inc.
USA
<1968
-
A
HH Universum
GER
1930s
-
S
Hietts, De Kerniea James Thomas
USA
1897
1903
M
-
Hill, Thomas
USA
1857
-
M
-
Hiltpold, E.W.
SWI
1940s
-
S
Hiltra
JAP
-
-
A
-
Hispano-Olivetti
SPA
1950s
-
M
-
Högfors
A.B. Affärssystem
SWE
1930
-
M
-
Holland, J.S.
UK
1835
-
M
-
Hollerith, Herman
USA
1890
-
E
Holman Engineering Works
UK
-
-
A
Holz, Heinrich
GER
1930
-
A
Hono
JAP
1970s
-
S
Hono-Rietz
Graphoplex
ITA
-
-
S
-
Hope Slide Rule Mfg. Co., Ltd.
JAP
-
>1970
S
Howitzer
USA
>1952
-
S
Hüber, Robert
GER
-
-
?
-
Hübner, Otto
GER
-
-
M
-
Huet
FRA
-
-
S
Hughes-Owens (H-O)
SUN, Hemmi
CAN
-
-
S
Hüttebräuker, Gustav
Metallwarenfabrik - Stanz- und Prägewerk
GER
1897
-
S


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