1
The European Patent : a European success story for innovation /
Book
...AQAG - Reference guides to patents and standards...
Table of Contents 
2
Patent, trademark, and copyright searching on the Internet /
Book
...AQAG - Reference guides to patents and standards...
3
Wie finde ich Normen, Patente, Reports: ein Wegweiser zu technisch naturwissenschaftlicher Spezialliteratur.
Book
...AQAG - Reference guides to patents and standards...
4
Patentinformation und Patentdokumentation in Westeuropa : ein Bestandsverzeichnis von öffentlich zugänglichen Diensten.
Book
...AQAG - Reference guides to patents and standards...
5
Uses of certified reference materials.
Book
1989
...AQAG - Reference guides to patents and standards...
6
Contents of certificates of reference materials.
Book
1981
...AQAG - Reference guides to patents and standards...