Composite plastic with laser altered internal material propertie

Details Composite plastic with laser altered internal material propertie Composite plastic with laser altered internal material propertie

1987-09-28

1989-04-18

Albritton, C. L.

Electric heating

Metal heating

By arc

346 76L, B23K 2600

Patent

active

048229733

ABSTRACT:
An identification mark which remains permanently readable is applied by means of a laser beam through a lightwave window of plastics material to a plastics layer situated behind that window.

REFERENCES:
patent: 4286250 (1981-08-01), Sacchetti
patent: 4489230 (1984-12-01), Yamamoto
patent: 4584456 (1986-04-01), Oodaira et al.
patent: 4694138 (1987-09-01), Oodaira et al.

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