Chapter XXXV.

§1. Why is the power to establish post-offices given to congress?

§2. How are useful arts and sciences promoted?

§3. How does an author of a work proceed in procuring a copy-right? By

whom, and where, is the title recorded?

§4. What else must the author do? For how many years is the right

obtained? For what term, and how, may the right be continued?

§5. Where are patents for inventions obtained? How does the inventor

proceed?

§6. How much must he pay before his petition is considered? For what

term are patents granted? For what term may they be renewed?

The government class book Designed for the instruction of youth in the principles of constitutional government and the rights and duties of citizens. · 第 35 / 67 章