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AT121724B
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Reinforced concrete ceiling.
Assignee: August Richard Bergmann
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Filing: 1930-02-03
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Granted: 1931-03-10
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Expires: 1950-02-03
Abstract
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Inventors
- 👤 August Richard Bergmann
Bibliographic Details
Application Number
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Jurisdiction
AT
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google_patents
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2026-10-28 18:34
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