Strips of flexible material or endless webs movable in contact with gases and liquids.
SEE OR SEARCH CLASS
226, Advancing Material of Indeterminate Length,
97.1+, for fluid means to advance material of indeterminate length.
242, Winding, Tensioning, or Guiding, for more than a nominal supply or take-up coil structure (e.g., a support for such a coil, a cooperative relationship between a tension or exhaust detector, and reel driving or reel stopping means, etc.),
615.11+, a residual locus for a material fluid suspension guide or guard.
