Normale Ansicht MARC ISBD

European convention on the international classification of patents for invention : Paris, 19. December 1954 ; Irish instrument of Ratification deposited on 11. March, 1955 ; Presented to Dáil Eireann by the Minister for External Affairs - 44 S. - Treaty Series 1955,10 . - Treaty-Series 1955,10 .

Subjects--Topical Terms:
Internationale Patentklassifikation