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Expired
Application number
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Nikolaus Gustaf Herm Kauffmann
Caspar Eduard Hugo Medberg
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Publication of GB190411830ApublicationCriticalpatent/GB190411830A/en
Casting Or Compression Moulding Of Plastics Or The Like
(AREA)
Abstract
11,830. Kauffman, N. G. H. von, and Medberg, C. E. H. May 24. Moulding artificial stone.-The moulds are lubricated with chalk or similar powder, and the composition is submitted to a pressure of about 2,000 atmospheres.
GB190411830D1904-05-241904-05-24Improvements in the Manufacture of Artificial Stone for Paving, Decorative and other purposes.
ExpiredGB190411830A
(en)