American System may refer to:
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American System (economic plan), an 1800s economic program of Henry Clay and the Whig Party based on the "American School" ideas of Alexander Hamilton
* American system, an informal name for the
Universal Numbering System
The Universal Numbering System, sometimes called the "American System", is a dental notation system commonly used in the United States.
Most of the rest of the world uses the FDI World Dental Federation notation, accepted as an international sta ...
dental notation introduced in the US in the 1800s
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American system of manufacturing, a set of manufacturing methods that evolved in the 19th century in the US
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American system passenger coach or "open coach", a style of railway passenger coach first introduced in the 1800s in the US
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United States customary units
United States customary units form a system of measurement units commonly used in the United States and U.S. territories since being standardized and adopted in 1832. The United States customary system (USCS or USC) developed from English units ...
, a system of measurement used in the US
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