StrasbourgAgreement Concerning the International Patent Classification of March 24, 1971
StrasbourgAgreement Concerning the International Patent Classification of March 24, 1971
- Geneva ; World Intellectual Property Organization , 1971.
- 19p. : 21 cm.
- WIPO publication : No. 275 (E) .
9789280504446
Patents - Classification
9789280504446
Patents - Classification