Cpc classification
Posted: Thu Jul 13, 2017 3:48 pm
Hey,
Can you tell me please if it is correct to put in my query: left (cpc_class_symbol,4) in ('y02B', 'y02c', 'y02e').
I would like to obtain all the patents with these CPC codes and all subcodes.
what is the difference if i put cpc_class_symbol in ('y02B', 'y02c', 'y02e')
Thank you from advance
Can you tell me please if it is correct to put in my query: left (cpc_class_symbol,4) in ('y02B', 'y02c', 'y02e').
I would like to obtain all the patents with these CPC codes and all subcodes.
what is the difference if i put cpc_class_symbol in ('y02B', 'y02c', 'y02e')
Thank you from advance