FR336748A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements in the manufacture of wick carbon for the electric arc
Assignee: FREDERIC VON HARDTMUTH
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Filing: 1903-11-17
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Granted: 1904-03-16
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Expires: 1923-11-17
Abstract
No abstract record available.
Inventors
- 👤 Frederic Von Hardtmuth
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 05:50
CPC Classifications
H; H05; H05B; H05B31/00; H05B31/02; H05B31/06; H05B31/16
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