The Electrolytic Colouring of Anodized Aluminium

German Pat 657,902 (1936).

German Pat 664,240 (1936).

Italian Pat 339,232 (1936).

German Pat 741,753 (1940).

Norwegian Patent 69,930 (1946).

Japanese Pat 310,401 (1960).

Brit Pat 1,022,927 (1966).

US Pat 3,382,160 (1968).

Hermann E., 1972, Galvanotechnik, 63, 110

Japanese Pat 46–20568 (1971).

Brit Pat 1,311,761 (1973).

German Offenlegungschrift 2,164,030 (1972).

Austrian Pat 286,056 (1970).

Brit Pat 1,342,776 (1974).

Brit Pat 1,333,344 (1973).

German Offenlegungschrift 2,229,562 (1972).

Brit Pat 1,301,577 (1972).

German Offenlegungschrift 2,230,868 (1973).

Brit Pat 1,121,228 (1968).

German Offenlegungschrift 2,158,291 (1972).

Brit Pat 1,292,699 (1972).

Brit Pat 1,241,296 (1971).

Brit Pat 1,216,440 (1970).

German Offenlegungschrift 2,050,870 (1972).

German Offenlegungschrift 2,128,194 (1973).

Brit Pat 1,271,303 (1972).

Brit Pat 1,257,047 (1971).

Brit Pat 1,311,972(1973).

German Offenlegungschrift 1,948,552 (1970).

German Offenlegungschrift 2,208,315 (1972).

Brit Pat 1,331,365 (1973).

Hirokane T., 1973, International Conference on Aluminium Industrial Products, Pittsburgh, USA

Brit Pat 1,297,265 (1972).

Brit Pat 1,291,607 (1972).

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Laser L., 1972, Aluminium, 48, 169

Sandera L., 1973, Aluminium, 49, 533