CH354237A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Building block used for the production of formwork-free concrete masonry
Assignee: Keller Johann
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Filing: 1957-02-01
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Granted: —
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Expires: 1977-02-01
Abstract
No abstract record available.
Inventors
- 👤 Keller Johann
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-09 08:22
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/42; E04B2/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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