US PATENT SUBCLASS 29 / 228
.~.~ Flat spiral spring (e.g., watch or clock type)

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}
228.~.~ Flat spiral spring (e.g., watch or clock type)

DEFINITION

Classification: 29/228

Flat spiral spring (e.g., watch or clock type):

(under subclass 225) Apparatus for applying or removing a flat spiral spring, e.g., a watch or clock spring.

SEE OR SEARCH CLASS

81, Tools,

7.5, for a tool for winding a mainspring.