Statistical Evolution of patent applications on inventions in a field of coherent subjects as a base for R & D policy
Jonge, A. P. de
Statistical Evolution of patent applications on inventions in a field of coherent subjects as a base for R & D policy
Statistik
Patentwesen
Statistical Evolution of patent applications on inventions in a field of coherent subjects as a base for R & D policy
Statistik
Patentwesen