FR977209A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Alphabet for the blind and materials for its implementation
Assignee: Jacques-Marcel Lecoq
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Filing: 1948-10-29
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Granted: 1951-03-29
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Expires: 1968-10-29
Abstract
No abstract record available.
Inventors
- 👤 Jacques-Marcel Lecoq
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 17:16
CPC Classifications
G; G09; G09B; G09B21/00; G09B21/02
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