US PATENT SUBCLASS 473 / 101
.~.~ Pin sensor

Current as of: June, 1999
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473 /   HD   GAMES USING TANGIBLE PROJECTILE

54  DF  BOWLING {6}
64  DF  .~ Handling of pin or pin representation {9}
101.~.~ Pin sensor

DEFINITION

Classification: 473/101

Pin sensor:

(under subclass 64) Apparatus comprising means for detecting the position or state (i.e., toppled or untoppled) of a target on the playing field.