FR726484A
Expired / Lapsed
FR
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Smoke density indicator
Assignee: Siemens and Halske AG
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Filing: 1931-11-17
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Granted: 1932-05-30
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Expires: 1951-11-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-24 11:34
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/49; G01N21/53; G01N21/534
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