Patent DE131972C successfully refreshed from Google Patents.
DE131972C
Active / In Force
DE
DE131972C - - Google Patents
Assignee: —
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Filing: —
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Granted: —
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Expires: —
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-29 20:05
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/003; E21B44/00; E21B47/00; E21B47/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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