| http://www.w3.org/ns/prov#value | - with speed and heart rate monitoringUS6201476 *5 Nov 199913 Mar 2001Csem-Centre Suisse D'electronique Et De Microtechnique S.A.Device for monitoring the activity of a person and/or detecting a fall, in particular with a view to providing help in the event of an incident hazardous to life or limbUS6208251 *31 Dec 199727 Mar 2001Pierre-Henri CadetSystem for monitoring and assisting isolated persons,
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