(under subclass 398) Subject matter wherein the frame includes structure for either: (a) supporting the spool in alternative positions within the frame, or (b) for supporting the frame for movement from one to another position on the carrier.
SEE OR SEARCH THIS CLASS, SUBCLASS:
391.1, for a spool shiftable between traction drive and nondrive positions (e.g., between ground-engaging and elevated positions).
591+, for a coil holder adapted for use in plural positions.
