Patent US1904918A successfully refreshed from Google Patents.
Patent FR753426A successfully refreshed from Google Patents.
FR753426A
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FR
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New calculation instrument
Assignee: Robert Obrecht
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Filing: 1932-11-18
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Granted: 1933-10-16
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Expires: 1952-11-18
Abstract
No abstract record available.
Inventors
- 👤 Robert Obrecht
- 👤 Oscar Mathis
- 👤 Jacob Huber
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 22:44
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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