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FR1007998A Expired / Lapsed FR ⏱️ 0.0 years remaining

Planchette for teaching numbers and numbers

Assignee: Sejourne
•
Filing: 1950-01-05
•
Granted: 1952-05-12
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Expires: 1970-01-05
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Abstract

No abstract record available.

Inventors

  • 👤 Sejourne

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-29 21:32
CPC Classifications
G; G09; G09B; G09B17/00

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