US PATENT SUBCLASS 29 / 227
.~.~ Helical spring

Current as of: June, 1999
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29 /   HD   METAL WORKING

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
225  DF  .~ Spring applier or remover {5}
227.~.~ Helical spring

DEFINITION

Classification: 29/227

Helical spring:

(under subclass 225) Apparatus for applying or removing a helical spring.

SEE OR SEARCH THIS CLASS, SUBCLASS:

215+, for apparatus for compressing a helical engine valve spring, holding such a spring, or for otherwise applying or removing an engine valve spring.

226, for a helical transmission spring compressor.

SEE OR SEARCH CLASS

53, Package Making,

114, for apparatus for compressing coil springs and placing them in a cover (e.g., mattress or upholstery ticking).