<http://webisa.webdatacommons.org/350602628>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/350602628>	<http://www.w3.org/ns/prov#value>	"Technical Field The present invention relates to a device in concrete structures cast in situ, more specifically to a device for making recesses in a concrete structure during casting and for the protection of reinforcing steel intended to connect this concrete structure with at least one further concrete structure, the device including a section which may be cast into the first-mentioned concrete" .
<http://webisa.webdatacommons.org/350602628>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/prov/273819237>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/350602628> .