Matches in DBpedia 2016-04 for { <http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=3686635> ?p ?o }
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- nph-Parser?patentnumber=3686635 accessdate "2013-05-04".
- nph-Parser?patentnumber=3686635 date "1972-08-22".
- nph-Parser?patentnumber=3686635 isCitedBy Selective_calling.
- nph-Parser?patentnumber=3686635 title "US Patent and Trademark Office".
- nph-Parser?patentnumber=3686635 url "http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=3686635".
- nph-Parser?patentnumber=3686635 work "Integrated Circuit Decoder Responsiver To Two Sequential Tones, With Group Call Provisions, US patent 3,686,635".