About: http://webisa.webdatacommons.org/419779038

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	Helical scan type magnetic recording apparatus according to claim 1, wherein said wrapping angle ?? is selected to satisfy the equation ##EQU15## where m is a positive integer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com