UNITED STATES PATENT OFFICE THE CLASSIFICATION OF PATENTS Department of the Interior
PREFATORY NOTE.
CONTENTS. A. Introduction. 1 Past classifications of the U. S.
THE CLASSIFICATION OF PATENTS
(A) INTRODUCTION.
(B) PRINCIPLES OF THE NEW CLASSIFICATION OF THE PATENT OFFICE.
(C) RULES OF CLASSIFICATION. BASIS OF CLASSIFICATION.
(D) PROCEDURE IN RECLASSIFYING WITHIN EXAMINING DIVISIONS.
