A mobile bed scale is contemplated which lifts the entire bed with patient in situ on a load platform with a non-slip surface. The scale minimizes both vertical and horizontal displacement. The platform has load cells which deliver data to a memory and display device. The invention is portable and partly...http://www.google.com.au/patents/US5990423?utm_source=gb-gplus-sharePatent US5990423 - Mobile hospital bed scale
