Patent DE482132C successfully refreshed from Google Patents.
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membrane

Assignee: Siemens and Halske AG
•
Filing: 1927-03-13
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Granted: 1930-07-18
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Expires: 1947-03-13
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Abstract

No abstract record available.

Inventors

  • 👤 Erwin Gerlach

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-03 13:24
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/06; H04R1/20; H04R1/32; H04R1/40; H04R1/403; H04R7/00; H04R7/02; H04R7/04; H04R7/06; H04R9/00; H04R9/02; H04R9/04; H04R9/046; H04R9/047; H04R9/06; H04R9/063

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