DIFF Subgroup
C03B 23/0496 Full Title
Re-forming shaped glass (re-forming fibres or filaments C03B37/14) > Re-forming tubes or rods > by pressing (C03B21/04 , C03B23/26 take precedence)
C03B 23/0496 Re-forming shaped glass (re-forming fibres or filaments C03B37/14) > Re-forming tubes or rods > by pressing (C03B21/04 , C03B23/26 take precedence)