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Application filed by Wenzel HorakfiledCriticalWenzel Horak
Priority to GR400109404ApriorityCriticalpatent/GR9404B/en
Publication of GR9404BpublicationCriticalpatent/GR9404B/en
GR400109404A1940-10-291940-10-29
SCREW ADJUSTMENT SECTION (EPISTOMION) FOR FILTER PROTECTION IN THESE GASES AFTER INHALATION AND EXHAUST VALVES.
GR9404B
(en)