Positex applied to cotton, linen, sisal or jute yarns and fabrics
Blow CM
Positex applied to cotton, linen, sisal or jute yarns and fabrics - Positex pamphlet No.4 Published by British Rubber Development Board, London 1947 - 12p
Positex applied to cotton, linen, sisal or jute yarns and fabrics - Positex pamphlet No.4 Published by British Rubber Development Board, London 1947 - 12p