Patent CH274441A successfully refreshed from Google Patents.
CH274441A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Electrical discharge tube with a cathode which is provided with a supply of emitting compounds.
Assignee: Philips Nv
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Filing: 1948-11-24
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Granted: —
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Expires: 1968-11-24
Abstract
No abstract record available.
Inventors
- 👤 Gloeilampenfabrieken N Philips
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-06 13:40
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/20; H01J1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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