preface: "Publication of this manual is provided by the United States Patent and Trademark Office (USPTO) s patent examiner, applicant, lawyer, Agents and representatives refer to work practices and processes related to patent applications filed in the United States Patent and Trademark Office. It contains the examiner's instructions, And the nature of information and interpretation of other materials, The current procedures are outlined, Examiners are required or authorized where appropriate, In the right circumstances, In the normal examination of patent application. This manual does not have the force of law, Or in the title 37 The strength of the Code of Federal Regulations rules. "

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