A supply unit with a structural-tubing-type supply beam fastened to a ceiling with supply lines and with a carriage displaceable along the supply beam with a support device for medical treatment instruments. The line routing of the supply lines is extensively hidden, without the displaceability of the...http://www.google.ca/patents/US5479958?utm_source=gb-gplus-sharePatent US5479958 - Supply unit for medical treatment instruments
