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JPS5893043A
Expired / Lapsed
JP
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Assignee: Hitachi Ltd
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Filing: 1981-11-30
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Granted: —
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Expires: 2001-11-30
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
- 👤 Masanori Ogino
- 👤 正規 荻野
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-01 19:10
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60; G03B21/62; G03B21/625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
JPS499129B1
Cited
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