E - Fixed Constructions – 04 – F
Patent
E - Fixed Constructions
04
F
98/14
E04F 17/04 (2006.01) A61C 19/00 (2006.01) B08B 15/00 (2006.01) F24F 7/04 (2006.01)
Patent
CA 1176495
ABSTRACT OF THE DISCLOSURE A method of purifying the contamination of a dental consultation room is disclosed. The purification method is characterized in that an anesthetic gas such as laughing gas and the dust generated by drilling a tooth or false tooth of the patient are changeably sucked either from a region close to the floor of the dental consultation room, or from outside the oral cavity of the patient, and are discharged outside the consultation room. Disclosed also is an apparatus for practising the purification method.
408771
Fetherstonhaugh & Co.
Hayashikane Shipbuilding & Engineering Co. Ltd.
Tada Yoshikazu
LandOfFree
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