U.S. federal trademark · Serial No. 73173985 · Reg. No. 1132081
INDUSTRIAL VACUUM CLEANING SYSTEM COMPRISING A CENTRAL VACUUM CHAMBER IN WHICH ARE HOUSED AN ELECTRIC MOTOR, BLOWER AND FILTER, AND DUCTS AND CLEANING ATTACHMENTS THEREFOR
DOMESTIC VACUUM CLEANING SYSTEMS COMPRISING A CENTRAL VACUUM CHAMBER IN WHICH ARE HOUSED AN ELECTRIC MOTOR, BLOWER AND FILTER, AND DUCTS AND CLEANING ATTACHMENTS THEREFOR
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