FR1540609A
Expired / Lapsed
FR
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Helical staircase in prefabricated elements
Assignee: Helmut Gimmler
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Filing: 1967-10-04
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Granted: 1968-09-27
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Expires: 1987-10-04
Abstract
No abstract record available.
Inventors
- 👤 Helmut Gimmler
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 20:54
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/02; E04F11/022; E04F11/032
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References Cited (Backward Citations)
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