https://www.nodc.noaa.gov/archive/arc0046/0093171/?C=M;O=A
Index of /archive/arc0046/0093171
index ofarchive
https://www.nodc.noaa.gov/archive/arc0046/0093171/1.1/
Index of /archive/arc0046/0093171/1.1
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https://pubchem.ncbi.nlm.nih.gov/patent/EP-0093171-B1
A cutting machine tool and a method for its production - Patent EP-0093171-B1 - PubChem
EP-0093171-B1 chemical patent summary.