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FR1037582A Expired / Lapsed FR ⏱️ 0.0 years remaining

Two Stage Liquid Ring Air Pump

Assignee: Otto Siemen
•
Filing: 1951-02-13
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Granted: 1953-09-21
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Expires: 1971-02-13
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Abstract

No abstract record available.

Inventors

  • 👤 Otto Siemen
  • 👤 Johannes Hinsch

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-05 07:51
CPC Classifications
F; F04; F04C; F04C23/00; F04C23/001; F04C19/00; F04C19/004

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