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| All Patents in class 138/145 | |||||
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| Number | Date | Patentee | Title | Type | |
| 67,080 | Jul. 23, 1867 | N. Stephens | Improved tap for cement-lined pipes | pipes | |
| 97,767 | Dec. 14, 1869 | J.W. Douglas | Improvement in pumps | household hand pumps | |
| 127,438 | Jun. 04, 1872 | A.P. Stephens | Improvement in the manufacture of cement pipes | pipes | |
| 319,144 | Jun. 02, 1885 | N. Stephens, M.L. Ritchie | Method of utilizing old boiler-tubes | ||