US PATENT SUBCLASS 227 / 147
.~ Impact-type driver

Current as of: June, 1999
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227 /   HD   ELONGATED-MEMBER-DRIVING APPARATUS

140  DF  WITH MEANS TO SUPPORT MEMBER AND/OR WORK RELATIVE TO DRIVER {11}
147.~ Impact-type driver

DEFINITION

Classification: 227/147

(under subclass 140) Device wherein a driver has a surface intended to receive a blow, from a moving mass of material, (e.g., hammer head), for actuating said driver.

SEE OR SEARCH CLASS

173, Tool Driving or Impacting,

90+, for impact devices of general utility.