TY  - GEN
T1  - 150 years of patent protection /
AU  - Lerner, Josh,
N1  - This article was downloaded and printed from the RePEc online archive. It was published in January 2000 as Working Paper 7478 in the NBER Working Paper Series. see also www.nber.org/papers/w7478.
ID  - 13563
KW  - Patents
KW  - PATENTS : HISTORY
KW  - PATENT PROTECTION
KW  - PATENT SYSTEM : UNITED STATES
TI  - 150 years of patent protection /
ER  -