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Introduction to Derwent World Patents Index on ... - STN International

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Classificati<strong>on</strong> searching<br />

• DWPI Classificati<strong>on</strong> (/DC)<br />

• DWPI Manual Codes (/MC)<br />

• Internati<strong>on</strong>al Patent Classificati<strong>on</strong> (/IPC)<br />

• European Patent Classificati<strong>on</strong> (/EPC)<br />

• USPTO Nati<strong>on</strong>al Classificati<strong>on</strong> (/NCL)<br />

• Japanese Patent Office FI-Terms (/FCL)<br />

• Japanese Patent Office F-Terms (/FTRM)<br />

Note: this introduc<str<strong>on</strong>g>to</str<strong>on</strong>g>ry e-Seminar<br />

<strong>on</strong>ly reviews DC, MC and IPC.<br />

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