TY  - BOOK
ED  - Bulgarian Chamber of Commerce <Sofia>
ED  - Patent and Trademark Bureau <Sofia>
TI  - Potection of industrial property in the People's Republic of Bulgaria
PY  - 1970///
CY  - Sofia, 
KW  - Bulgarien
KW  - Gewerblicher Rechtsschutz
N1  - 14.416
ER  -