JPS522206A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Indicator for termination of a telephone call
Assignee: Mitsubishi Electric Corp
•
Filing: 1975-06-24
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Granted: —
•
Expires: 1995-06-24
Abstract
Abstract PURPOSE:To enable to know easily the termination of a telephone call from the outside even if any device is connected to the telephone set.
Inventors
- 👤 Yoshiaki Doi
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-10-29 00:16
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
JPS4910604A
Cited
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