TY  - BOOK
TI  - Seminar for officers concerned with the training of personnel in the use of International Patent Classification = Seminaire pour fonctionaires charges de la Classification Internationale des Brevets: Rijswijk, May 6.-9. 1974
PY  - 1974///
CY  - Rijswijk, 
KW  - Kongress
KW  - Internationale Patentklassifikation
KW  - Rijswijk 1974
N1  - 18.959
ER  -