@prefix dbo: . @prefix dbr: . dbr:Schoharie_limousine_crash dbo:wikiPageWikiLink dbr:Back-up_beeper . @prefix foaf: . @prefix wikipedia-en: . wikipedia-en:Back-up_beeper foaf:primaryTopic dbr:Back-up_beeper . dbr:Noise_Free_America dbo:wikiPageWikiLink dbr:Back-up_beeper . dbr:Alarm_fatigue dbo:wikiPageWikiLink dbr:Back-up_beeper . dbr:Electric_vehicle_warning_sounds dbo:wikiPageWikiLink dbr:Back-up_beeper . dbr:Midtown_Madness dbo:wikiPageWikiLink dbr:Back-up_beeper . dbr:Back-up_alarm dbo:wikiPageWikiLink dbr:Back-up_beeper ; dbo:wikiPageRedirects dbr:Back-up_beeper . dbr:Backup_beeper dbo:wikiPageWikiLink dbr:Back-up_beeper ; dbo:wikiPageRedirects dbr:Back-up_beeper . @prefix rdf: . dbr:Back-up_beeper rdf:type dbo:Device . @prefix rdfs: . dbr:Back-up_beeper rdfs:label "Back-up beeper"@en ; rdfs:comment "A back-up beeper, also known as back-up alarm or vehicle motion alarm, is a device intended to warn passers-by of a vehicle moving in reverse. Some models produce pure tone beeps at about 1000 Hz and 97-112 decibels. Matsusaburo Yamaguchi of Yamaguchi Electric Company, Japan, invented the back-up beeper which was first manufactured as model BA1 in 1963. ISO 6165 describes \"audible travel alarms\", and ISO 9533 describes how to measure the performance of the alarms."@en . @prefix dcterms: . @prefix dbc: . dbr:Back-up_beeper dcterms:subject dbc:Automotive_technologies , dbc:Warning_systems , dbc:Construction_safety ; dbo:abstract "A back-up beeper, also known as back-up alarm or vehicle motion alarm, is a device intended to warn passers-by of a vehicle moving in reverse. Some models produce pure tone beeps at about 1000 Hz and 97-112 decibels. Matsusaburo Yamaguchi of Yamaguchi Electric Company, Japan, invented the back-up beeper which was first manufactured as model BA1 in 1963. In the U.S., the back-up beeper was first manufactured by Ed Peterson who sold the system to Boise engineering firm Morrison Knudsen in 1967. The company now markets the Bac-A-Larm and sells about one million of the backup alarms annually, more than other suppliers. ISO 6165 describes \"audible travel alarms\", and ISO 9533 describes how to measure the performance of the alarms."@en ; dbo:wikiPageWikiLink dbr:Vehicle , dbr:Occupational_Safety_and_Health_Administration , dbr:NHTSA , dbc:Warning_systems , dbr:Electric_vehicle_warning_sounds , dbr:Noise-induced_hearing_loss , dbr:White_noise , dbr:Hertz , dbr:Pure_tone , , , dbr:Japan , , , dbr:Cry_wolf_effect , dbc:Construction_safety , dbr:Sound_pressure , dbc:Automotive_technologies . @prefix dbp: . @prefix dbt: . dbr:Back-up_beeper dbp:wikiPageUsesTemplate dbt:Reflist , dbt:Clarify , dbt:Better_source_needed ; dbo:wikiPageRevisionID 1103977275 . @prefix xsd: . dbr:Back-up_beeper dbo:wikiPageLength "6619"^^xsd:nonNegativeInteger ; dbo:wikiPageID 34684421 . @prefix owl: . dbr:Back-up_beeper owl:sameAs dbr:Back-up_beeper , , . @prefix wikidata: . dbr:Back-up_beeper owl:sameAs wikidata:Q4839017 . @prefix yago-res: . dbr:Back-up_beeper owl:sameAs yago-res:Back-up_beeper . @prefix gold: . dbr:Back-up_beeper gold:hypernym dbr:Device . @prefix prov: . dbr:Back-up_beeper prov:wasDerivedFrom ; foaf:isPrimaryTopicOf wikipedia-en:Back-up_beeper ; dbp:date "February 2021"@en ; dbp:reason "Citation appears to be a simple news article list, with no source for this claim."@en , "Prior paragraph contradicts this by saying that people become habituated."@en . dbr:Back_up_beeper dbo:wikiPageWikiLink dbr:Back-up_beeper ; dbo:wikiPageRedirects dbr:Back-up_beeper . dbr:Backup_alarm dbo:wikiPageWikiLink dbr:Back-up_beeper ; dbo:wikiPageRedirects dbr:Back-up_beeper . dbr:Vehicle_motion_alarm dbo:wikiPageWikiLink dbr:Back-up_beeper ; dbo:wikiPageRedirects dbr:Back-up_beeper .
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