Method and system for the production of sheet or platter shaped

Details Method and system for the production of sheet or platter shaped Method and system for the production of sheet or platter shaped

1976-05-03

1978-09-05

Pavelko, Thomas P.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264106, 264251, B29D 1700

Patent

active

041120302

ABSTRACT:
A method is provided for the production of sheet or platter shaped information carriers or records having surface structures thereon which correspond to recorded information, in particular video-signal memories of high storage capacity. An original or master information carrier or record has originally recorded information formed as a surface structure. This original is used to produce duplicate sheet or platter shaped records by applying a lacquer layer to the surface structure of the master record, hardening the layer, and permitting the hardened layer to adhere to an unmarked surface on the duplicate record to be produced.

REFERENCES:
patent: 2283286 (1942-05-01), Porth
patent: 2303395 (1942-12-01), Schultz
patent: 3421501 (1969-01-01), Beightol

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