China Patent Information Research System Search Counter£º

Search formula for LandCode is to input in the Line G.

Format: LandCord is 2 alphanumeric characters.

For Example: US£¬ DE£¬ 11

For a complicated search in which more than one LandCode is involved, boolean operators, "+', "*", "-", "(" and ")" can be used.

For Example:  US+DE+JP

If search in this entry is carried out successfully, the hits will be shown at the most right column of this line, otherwise the error message will be shown instead.


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