Ruling engine for producing stage micrometers
- Made:
- 1840
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Science Museum Group
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Ruling engine for producing stage micrometers, calibrated in 10,000 & 12,000 of an inch, c.1840
Details
- Category:
- Microscopes
- Object Number:
- 1983-426
- type:
- engines
- taxonomy:
-
- tools and equipment
- equipment
- power producing equipment
- credit:
- Delehar, P.
