Electric heating – Metal heating – By arc
Patent
1996-09-20
1998-06-02
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
21912169, 21912185, B23K 2600
Patent
active
057603693
ABSTRACT:
Paper cards for use in three-dimensional paper sculpture, wherein the cards have perforated images thereon produced by a laser beam directed by a computer-controlled movable mirror to the back surface of the cards in a predetermined pattern. Indicia for assembly of individual image elements are burned in the back of the cards during the cutting process.
REFERENCES:
patent: 4378480 (1983-03-01), Langhans
patent: 4404454 (1983-09-01), Taylor et al.
patent: 5183598 (1993-02-01), Helle et al.
patent: 5284536 (1994-02-01), Gruber
Evans Geoffrey S.
Uniek, Inc.
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