The power to regulate trade or commerce between the states with foreign nations and with the Indian tribes. The power to establish a uniform system of weights and measures. The power to set up a system of postal roads [is a federal power]. The power to establish a system of what we now call intellectual property laws, trademarks, copyrights, and patents. (29:21–29:25)
CLAIM
Asserts that establishing postal roads is a federal power.
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