Patent DE491247C successfully refreshed from Google Patents.
DE491247C
Expired / Lapsed
DE
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Top mattress with spring insert
Assignee: KNIPPENBERG FA A
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Filing: 1929-02-12
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Granted: 1930-02-07
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Expires: 1949-02-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 14:38
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/04; A47C27/06; A47C27/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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