Germany - Currently 50 Slide Rule Patents listed

Work in Progress - Clickable Thumbnails to PDF files will be added first followed by descriptions

1888 - 1934

DE043463C
May 21, 1888
Rechentafel (calculating board)
Julius Billeter
DE071715C
Nov 9, 1893
Rechenwalze (Computing Roller)
Julius Billeter
DE102599C
DE104869C
DE132347C
DE150179C
DE158452C
DE163933C
DE163935C
DE164814C
DE171698C
DE173660C
July 27, 1906
Rechenstab
Albert Nestler
DE206428A
DE215722
DE365637C1
DE450304C1
DE559664C1
DE574594
DE596286

1938 -

DE625535
DE655353
DE684135
DE804932
DE821840
DE873455
DE873456
DE1018659
DE1062040
DE1067622B
DE1115967
DE1170170
DE1289083
DE1314631
DE1348341
DE1354648

1942 - 1998

DE1394384
DE1400134
DE1484667
DE1486119
DE1506113
DE1606805U
DE1711381U
DE1758396A1
DE1711381U
DE1941665
DE2043176
DE2233134
DE3148355A1
DE1941665A1
DE19531041
DE19601272
DE19701250A1

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