Patent US2189934A successfully refreshed from Google Patents.
Patent US4546341A successfully refreshed from Google Patents.
AT241553B
Expired / Lapsed
AT
⏱️ 0.0 years remaining
Electroacoustic transducer that can be used in a handset of telephones
Assignee: Int Standard Electric Corp
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Filing: 1963-10-09
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Granted: 1965-07-26
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Expires: 1983-10-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
AT
Data Source
google_patents
Last Synchronized
2026-11-09 16:50
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/10; F24H1/101; F24H1/102
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