Calculating machine
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- Original object type: Image
- Title: Calculating machine
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Description:
MADAS (Multiplication Automat Division Addition Subtraction) mechanical calculating machine. Painted brass with steel fittings and a black painted metal lid. Patented Dec. 16th 1913, made in Switzerland. Can add up to 9,999,999 and totals to 999,999,999,
- Date range: c.1920
- Keywords: Computing
- Copyright Holders: Copyright University of Leeds, School of Physics and Astronomy
- Collection: Physics Historical Instruments
- Physical Identifier: Catalogue number : 1202
- URI: http://digital.library.leeds.ac.uk/id/eprint/1455