JPS5846798A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Speaker device
Assignee: Hitachi Ltd
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Filing: 1981-09-14
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Granted: —
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Expires: 2001-09-14
Abstract
Abstract Translated from Japanese (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Inventors
- 👤 Shinichiro Kawamura
- 👤 信一郎 河村
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-08 14:02
CPC Classifications
H; H04; H04R; H04R9/00; H04R9/02; H04R9/025; H04R9/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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