TY  - GEN
AU  - Gamm, Otto Friedrich Freiherr Von,
ID  - 8220
KW  - Trademarks.
KW  - Industrial property.
KW  - MARKS : OBLIGATION TO USE AND WORK (UTILITY)
T1  - Requirement of use in German trademark law :a survey /
TI  - Requirement of use in German trademark law :a survey /
VL  - 1979 Vol 10 No 2 pages 155-175
ER  -