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NL161638C Expired / Lapsed NL ⏱️ 0.0 years remaining

ECHO SUPPRESSION DEVICE.

Assignee: Western Electric Co
•
Filing: 1967-10-31
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Granted: 1980-02-15
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Expires: 1987-10-31
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction NL
Data Source google_patents
Last Synchronized 2026-11-01 00:13
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/20; H04B3/23; H04B3/238

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