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Licence
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LicenseAEG Elfa-Rechner
Science Museum Group
© The Board of Trustees of the Science Museum
AEG Elfa-Rechner, ready reckoner for direct and alternating current, cardboard, patented by Franz Lindner, Ratibor (= Raciborz, Poland)
Details
- Category:
- Mathematics
- Object Number:
- 1990-703
- Materials:
- card
- Measurements:
-
overall: 4 x 105 x 120 mm
- credit:
- Auction Team Koln
