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Description must not be vague and general
Must mention everything essential
Must precisely describe all materials and in-
Must communicate the latest information
Must describe the best method of operating
Need not set forth every application
Must be intelligible to workmen of ordinary
skill.
How combinations should be treated
A Specification must not claim too much
Must not make large speculative claims
Ambiguity to be eschewed
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Must not describe two methods when only
one is effective .
THE PATENT: ITS DATE, DURATION, AND
EXTENT.
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Chemical Processes and Products
Infringement by dealing in articles made by
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infringing a Patent
Agents.
Infringement by user
The Crown
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PART I.-STATUTES, RULES, AND FORMS.