FR1005530A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements in mechanical papermaking
Assignee: Louis-Pierre-Joseph Widerehr
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Filing: 1947-08-01
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Granted: 1952-04-11
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Expires: 1967-08-01
Abstract
No abstract record available.
Inventors
- 👤 Louis-Pierre-Joseph Widerehr
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-04 04:16
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/18
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