TY  - BOOK
AU  - Lampe, Ryan L
AU  - Moser, Petra
ED  - National Bureau of Economic Research
TI  - Patent pools and the direction of innovation: Evidence from the 19th-century sewing machine industry 
T2  - NBER Working Paper
PY  - 2011///
CY  - Cambridge
PB  - NBER
KW  - NBERWP  17573
KW  - E6778.pdf
UR  - http://elibrary.igidr.ac.in/e-library/working papers/NBER/2011/E6778.pdf
ER  -