1
George E Warrin, Rene J Perdreaux, Richard H Paschke, Teodor E Constantinescu, Robert McGill: Single multi-function handpiece for dental instruments. Dentsply Research & Development, David E Wheeler, Edward J Hanson Jr, April 11, 1989: US04820152 (168 worldwide citation)

A single handpiece that can be used in multiple dental treatments is provided. The handpiece comprises a housing having a coil for producing an electromagnetic or electrostrictive field in the housing, and a number of inserts that react with the electromagnetic or electrostrictive field and can be u ...


2
Warrin George E, Perdreaux Rene J, Paschke Richard H, Constantinescu Teodor E, Mcgill Robert: Single multi-function handpiece for dental instruments.. Dentsply Int, December 14, 1988: EP0294548-A1 (27 worldwide citation)

The handpiece (10) comprises a housing (12) having a coil for producing an electromagnetic or electrostrictive field in the housing, and a number of inserts (20, 30) that react with the electromagnetic or electrostrictive field and can be used with the housing to complete the handpiece. A switching ...


3
Warrin George E, Perdreaux Rene J, Paschke Richard H, Constantinescu Teodor E, Mcgill Robert: Piece a main simple multifonctionnelle pour instruments dentaires, Single multi-function handpiece for dental instruments. Dentsply International, SMART & BIGGAR, December 13, 1994: CA1333451

A single handpiece that can be used in multiple dentaltreatments is provided. The handpiece comprises ahousing having a coil for producing an electromagneticor electrostrictive field in the housing, and a numberof inserts that react with the electromagnetic orelectrostrictive field and can be used w ...