Ready reckoner for drilling calculations

Made:: 1965-1975 in Berlin

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Ready reckoner for drilling calculations, plastic
Science Museum Group
© The Board of Trustees of the Science Museum

Ready reckoner for drilling calculations, plastic, by Raboma-Maschinenfabrik, Berlin Borsigwalde

Details

Category:: Mathematics

Object Number:: 1990-701

Materials:: plastic

Measurements:: overall: 4 x 150 x 85 mm

type:: ready reckoner (engineering)

credit:: Auction Team Koln

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Ready reckoner for drilling calculations

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