DE647310C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the fine perforation of fine-porous materials such as separators, filter plates, cloths, etc., especially separators for accumulators
Assignee: Hagen KG Accu Fab Wilhelm
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Filing: 1935-04-05
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Granted: 1937-05-08
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Expires: 1955-04-05
Abstract
No abstract record available.
Inventors
- 👤 Dr Fritz Koenig
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-01 01:01
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M50/429; Y; Y02; Y02E; Y02E60/00; Y02E60/10
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References Cited (Backward Citations)
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