Wynalazczość

An edition of Wynalazczość (1971)

Wynalazczość

By Janusz Stępiński

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Publish Date

1971

Publisher

GUS

Language

pol

Pages

135

Description:

subjects: Inventions, Statistics, History, Patents, Patent lawyers, Wynalazki, Statystyki

Places: Poland, Europe, Polska

Times: 20th century