CPC Subgroup
F22B 27/06 bent in serpentine or sinuous form
Full Title
Instantaneous or flash steam boilers > built-up from water tubes (F22B27/12 - F22B27/16 take precedence) > bent in serpentine or sinuous form
F22B 27/06 Instantaneous or flash steam boilers > built-up from water tubes (F22B27/12 - F22B27/16 take precedence) > bent in serpentine or sinuous form