FR334420A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Symmetrograph device for the reproduction of counterpart drawings
Assignee: EDMOND VALTON FILS
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Filing: 1903-08-05
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Granted: 1903-12-21
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Expires: 1923-08-05
Abstract
No abstract record available.
Inventors
- 👤 Valton Edmond
- 👤 Gaston Langelle
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-24 21:33
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/10
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References Cited (Backward Citations)
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