Google patents includes patent publications from 100 patent offices around the world, as well as many more technical documents and books indexed in Google Scholar and Google Books, and documents from the Prior Art Archive.
נושאים:
פטנטים
תקופת כיסוי בשנים:
US patent documents date back to 1790, EPO and WIPO to 1978
הערות לגישה:
Free
קישור למאגר:
ספק:
Google
Guide links: