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DE521649C Expired / Lapsed DE ⏱️ 0.0 years remaining

Air filter housed in a housing, especially for protecting compressors

Assignee: Luftfilter Baugesellschaft Mbh
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Filing: 1929-06-14
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Granted: 1931-03-26
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Expires: 1949-06-14
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Abstract

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Inventors

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-06 13:25
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/16

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