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Application filed by John Henry WigginsfiledCriticalJohn Henry Wiggins
Priority to AT419157ApriorityCriticalpatent/AT204234B/de
Application grantedgrantedCritical
Publication of AT204234BpublicationCriticalpatent/AT204234B/de
AT419157A1957-06-261957-06-26Doppelwandiger und starr ausgebildeter Schwimmdeckel für Vorratsbehälter und Verfahren zu seiner Herstellung
AT204234B
(de)