PATENTS HISTORY
-
BTPATENTING + PATENTS + PATENT SPECIFICATIONS
-
UDC608.3(091)
-
Descriptor GERPATENTGESCHICHTE
-
Descriptor ENGPATENTS HISTORY
-
Descriptor FREHISTOIRE DES BREVETS
-
Variant GERGESCHICHTE/PATENTGESCHICHTE
-
Variant GERGESCHICHTE/PATENTE, GESCHICHTE DER PATENTE
-
Variant ENGHISTORY OF PATENTS
-
Variant ENGHISTORY/PATENTS HISTORY
-
Variant FREBREVETS/HISTOIRE DES BREVETS