About this deal
The electric whistle as claimed in claim 1, wherein the sound IC is PSG61. US13/551,759 2012-07-18 2012-07-18 Electric whistle
Electric whistle - Google Patents US8760272B2 - Electric whistle - Google Patents
en Inventor Yen-Hsiang Lien Ting Yang 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.) Christmas, Carnival, Halloween, Birthday, Baby Shower, New Year, Anniversary, Graduation, Luau, Wedding Standard delivery is only available to customers in mainland UK, other locations are liable for additional charge. Please enquire with the sales office if your delivery location is outside of the mainland UK and you would like to be quoted. G08B3/10— Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmissionOriginal 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.) 2012-07-18 Filing date 2012-07-18 Publication date 2014-06-24 2012-07-18 Application filed by Individual filed Critical Individual 2012-07-18 Priority to US13/551,759 priority Critical patent/US8760272B2/en 2014-01-23 Publication of US20140022063A1 publication Critical patent/US20140022063A1/en 2014-06-24 Application granted granted Critical 2014-06-24 Publication of US8760272B2 publication Critical patent/US8760272B2/en Status Active legal-status Critical Current 2033-02-26 Adjusted expiration legal-status Critical Links Control device capable of executing different actions by determining human body approaching distance Standard deliveries are made Monday to Friday between 8.00am and 5.30pm with special services available.