patent/US-4539435-A

http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4539435-A

Outgoing Links

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classificationCPCInventive	http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04M3-493 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G09B7-063 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04M11-00
classificationIPCInventive	http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04M11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04M3-493 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G09B7-06
filingDate	1982-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date>
grantDate	1985-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date>
inventor	http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_924ec4a00d947c7a6b03c6a5c6b12a2c
publicationDate	1985-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber	US-4539435-A
titleOfInvention	Interactive educational system with voice reaction and access using tone-generating telephone
abstract	This invention relates to an automated educational system in which a remote student or subject can be interrogated by a central automated interrogation system, can respond using machine-distinguishable signals generated by a Touch-Tone-type telephone, and in which an appropriate reaction to the answer chosen by the student can be communicated to the student.
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priorityDate	1982-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date>
type	http://data.epo.org/linked-data/def/patent/Publication

Incoming Links

Predicate	Subject
isDiscussedBy	http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID135781492 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID441074

Total number of triples: 118.