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| Patents for A. H. Norris | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 131,973 | Oct. 08, 1872 | J.S. Rue | Improvement in the Extension Rulers | |
 | 164,032 | Jun. 01, 1875 | G.M. Pratt | Chucks for Metal Drills | |
 | 192,831 | Jul. 10, 1877 | T.J. Jenne | Improvement in lifting-jacks | |
 | 229,359 | Jun. 29, 1880 | J.C. Beeks | Adjustable Jaw Ratchet Wrench | |
 | 531,971 | Jan. 01, 1895 | A.C. Schaefer | Calipers or Dividers | |