About: http://webisa.webdatacommons.org/98958815

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The manufacture of such equipment as is necessary to properly maintain and extend the fire alarm and police signal systems.
http://www.w3.org/ns/prov#wasQuotedFrom	sfmuseum.org