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<http://webisa.webdatacommons.org/205011671>	<http://www.w3.org/ns/prov#value>	"Ball bearing 620 is steel or other conductive material and is biased towards face plate 625 by conductive spring 630 and protrudes beyond face plate 625 so that it contacts the top of the front door 500." .
<http://webisa.webdatacommons.org/prov/294561069>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/205011671> .
<http://webisa.webdatacommons.org/205011671>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .