Patent JP3891679B2 successfully refreshed from Google Patents.
JP3891679B2
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Seamless steel pipe piercing and rolling plug and method of manufacturing the same
Assignee: Nippon Steel Corp
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Filing: 1998-03-06
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Granted: 2007-03-14
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Expires: 2018-03-06
Abstract
No abstract record available.
Inventors
- 👤 憲治 坪内
- 👤 津村 誠
- 👤 芳香 金川
- 👤 和正 石床
Bibliographic Details
Application Number
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Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-05 10:00
CPC Classifications
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