FR692017A
Expired / Lapsed
FR
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Device for exciting piezoelectric oscillations in crystals
Assignee: Leonide Mandelstamm
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Filing: 1930-03-15
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Granted: 1930-10-29
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Expires: 1950-03-15
Abstract
No abstract record available.
Inventors
- 👤 Leonide Mandelstamm
- 👤 Nicolas Papalexi
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 21:51
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/125; H03H9/13; H03H9/132
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