Chemistry: electrical and wave energy – Processes and products
Patent
1979-04-20
1981-01-27
Andrews, M. J.
Chemistry: electrical and wave energy
Processes and products
40 275, 72359, 204 37R, 428579, C25D 700
Patent
active
042473748
ABSTRACT:
A blank suitable for minting to form a coin or similarly disc-shaped article has an appropriately disc-shaped steel core completely encased by a copper coating electroplated thereof. The blank is produced by electroplating a copper coating onto an appropriately disc-shaped steel core such that the copper coating completely encases the steel core.
REFERENCES:
patent: 3834879 (1974-09-01), Chin
patent: 4089753 (1978-05-01), McMullen et al.
Clegg Maurice A.
Ruscoe Michael J. H.
Sarkar Kshitindra M.
Andrews M. J.
Delbridge Robert F.
Fors Arne I.
Sherritt Gordon Mines Limited
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