JPS54949A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Information retrieval unit
Assignee: Hitachi Ltd
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Filing: 1977-06-06
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Granted: —
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Expires: 1997-06-06
Abstract
Abstract PURPOSE: To display defective retrieval of a microfiche retrieval unit depending on its causes and to in cease the operation performance, providing a circuit discriminating input miss and a circuit detecting the condition of abnormity, and also common display circuit displaying those. COPYRIGHT: (C)1979,JPO&Japio
Inventors
- 👤 Nobuteru Asai
- 👤 Shigeru Uchida
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-10-25 20:25
CPC Classifications
—
Claims Analysis
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References Cited (Backward Citations)
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