TY  - JOUR
AU  - Hashemi, Shima sadat
TI  -  A Study about Registration Level of Patent Offices in European Union, U.S.A and Iran 
JO  -  Roshd -e- Fanavari
VL  - 3
IS  - 12
SP  - 1
EP  - 10
PY  - 2007
DO  - 
ER  -