更近一点，1976年美国对Copyright Act的修订，将版权扩展到保护未出版的作品，并编写了“正当使用”的条款。

More recently, a revision of the U.S. copyright Act in 1976 extended copyright protection to unpublished works and codified what constitutes "fair use."

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例如，在1886圣塔克拉拉郡诉南太平洋铁路公司案（Santa Clara County v Southern Pacific Railroad）一案中，法院裁决，认为公司受第14条修订案保护（包括其正当程序和受法律平等保护）。

In Santa Clara County v Southern Pacific Railroad in 1886, for example, it ruled that companies enjoy the protections of the 14th amendment (including due process and equal protection under the law).

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