US PATENT SUBCLASS 123 / 188.12
.~.~ For spring

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

188.1  DF  VALVE {10}
188.11  DF  .~ Wear feature {1}
188.12.~.~ For spring {1}
188.13  DF  .~.~.~> Including attaching means

DEFINITION

Classification: 123/188.12

For spring:

(under subclass 188.11) Apparatus wherein the component or accessory compensated is a resilient element.