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<http://webisa.webdatacommons.org/7520357>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<federalregister.gov> .
<http://webisa.webdatacommons.org/7520357>	<http://www.w3.org/ns/prov#value>	"They suggest that the ???9809??? marking could lead to confusion and cause these cylinders to be filled with a gas other than acetylene." .
<http://webisa.webdatacommons.org/prov/486391864>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/7520357> .