Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES1974199291UpriorityCriticalpatent/ES199291Y/en
Publication of ES199291UpublicationCriticalpatent/ES199291U/en
Application grantedgrantedCritical
Publication of ES199291YpublicationCriticalpatent/ES199291Y/en
Improved microphone, essentially characterized in that it has incorporated an oxygen conduit with an outlet nozzle thereof at its periphery governed by a conventional valve, advantageously actuable by the acting speaker. (Machine-translation by Google Translate, not legally binding)