FR1005585A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for automatically obtaining small displacements, in particular with a view to the fabrication of a diffraction grating
Assignee: Pierre-Andre Drouin
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Filing: 1947-08-14
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Granted: 1952-04-11
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Expires: 1967-08-14
Abstract
No abstract record available.
Inventors
- 👤 Pierre-Andre Drouin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 22:35
CPC Classifications
G; G01; G01B; G01B7/00
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