Ref.2 (1995)was issued earlier than Ref.1(2004).Both inventions are very similar ,that is the application of laser line for putting aiming devices .If Our invention is obvious ,the inventor of Ref.1(2004).who should know about Ref.2 (1995),would already include our invention in his patent .This did not happan.It means the combination Ref.2 and Ref.1 cannot produce our invention .
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