Method of producing a male mold for use in making a vacuum forming tool

A vacuum forming apparatus and process is provided for molding a thin sheet (88) of thermoformable plastic into an accurate three-dimensional relief reproduction of an original artwork. The sheet of plastic (88) has printed on one side thereof a permanent image of the original artwork. For producing...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HARDING, WILLIAM, LIDDLE, WILLIAM, HARDING, GLENN T
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING DECORATIVE ARTS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPECIAL DESIGNS OR PICTURES TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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