Patent US3410957A successfully refreshed from Google Patents.
Patent FR842556A successfully refreshed from Google Patents.
FR842556A
Expired / Lapsed
FR
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Elastic core for casting heavy hollow steel parts
Assignee: Thyssen AG
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Filing: 1938-08-25
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Granted: 1939-06-14
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Expires: 1958-08-25
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 13:48
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/04
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