(under subclass 607) Subject matter wherein components of the spool are constructed to readily permit the spool to be reassembled from one configuration to a materially different configuration.
(1) Note. A spool must designed to undergo more than a quantitative reduction in hub dimension for loading and unloading coils or knockdown disassembly for placement in this subclass, but may include a flange arrangeable for accommodating different windings or providing a cover.