DE712434C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of pure surface filters and ultrafilters
Assignee: Siemens and Halske AG
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Filing: 1938-01-26
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Granted: 1941-10-18
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Expires: 1958-01-26
Abstract
No abstract record available.
Inventors
- 👤 Dr-Ing Bodo Von Borries
- 👤 Dr Med Helmut Ruska
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 00:52
CPC Classifications
B; B01; B01D; B01D67/00; B01D67/0002; B01D67/0023; B01D67/0032; B26; B26F; B26F1/00; B26F1/26; B26F1/31; H; H01; H01J; H01J37/00; H01J37/30; H01J37/31; Y; Y10; Y10S; Y10S164/00; Y10S164/04
Claims Analysis
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References Cited (Backward Citations)
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