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Application filed by Junior Walker JohnfiledCriticalJunior Walker John
Publication of CH58931ApublicationCriticalpatent/CH58931A/de
CH58931A1912-03-081912-03-08Neuerung an Büchern, insbesondere Taschenbüchern, bei welchen die Blätter lösbar mit der Einbanddecke verbunden sind
CH58931A
(de)