This primary source comes from the Records of the U.S. House of Representatives.
National Archives Identifier:
6050257Full Citation: House Report 147, 35th Congress, on Revision of the Patent Laws; 3/5/1858; Committee Papers, 1837 - 1946; Records of the U.S. House of Representatives, Record Group 233. [Online Version, https://docsteach.org/documents/document/house-report-147-35th-congress-on-revision-of-the-patent-laws, April 19, 2024]