FR379896A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for making watertight and for assembling ventilation pipes used in mines
Assignee: Individual
•
Filing: 1907-07-13
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Granted: 1907-11-21
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Expires: 1927-07-13
Abstract
No abstract record available.
Inventors
- 👤 Theodor Weiner
- 👤 Josef Petersitzky
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 23:18
CPC Classifications
E; E21; E21F; E21F1/00; E21F1/04; E21F1/06
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References Cited (Backward Citations)
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