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Class Information
Number: 433/151
Name: Dentistry > Apparatus > Hand manipulatable implement > Impacting means > By sudden release of spring
Description: Apparatus including a resilient member which stores energy supplied by the hand of an operator, which energy is subsequently released to impart a blow to the work.

Patents under this class:

Patent Number Title Of Patent Date Issued
8177555 Device for extracting a tooth root May. 15, 2012
4449935 Tooth crown remover May. 22, 1984
4300885 Percussive dental crown extractor Nov. 17, 1981

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