Section
4220, acts Aug. 16, 1954, ch. 736, 68A Stat. 494; Aug. 11, 1955, ch. 805, § 1(c),
69 Stat. 689, related to exemption for sales or resales to manufacturers. See section
4221 et seq. of this title.
For sections
4221 to
4225, see Prior Provisions notes set out under sections
4221 to
4225 of this title.