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Patent problem: right 1, right 2, right 3 means right 2. Can right 3 be directly attached to right 1 by modifying the claim? Why?
First, if it is in an invalid program, 3 can be merged into 1, that is,1+3;
Second, in the process of substantive examination, many examiners do not agree with 1+3, but require 1+2+3 unless there is a clear combination description of 1+3 in the specification. Of course, some examiners agree with 1+3, depending on your luck.