Patent US798163A successfully refreshed from Google Patents.
Patent FR728360A successfully refreshed from Google Patents.
FR728360A
Expired / Lapsed
FR
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Mine coverage
Assignee: Fritz Dunkel
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Filing: 1931-12-17
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Granted: 1932-07-05
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Expires: 1951-12-17
Abstract
No abstract record available.
Inventors
- 👤 Fritz Dunkel
- 👤 Paul Lorenz
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 23:08
CPC Classifications
F; F42; F42D; F42D5/00; F42D5/04; E; E21; E21F; E21F17/00; F42D5/045; F42D5/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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