AUTOMATIC LASER BEAM SCANNING FILM FLAW DETECTOR

1,254,325. Flaw detection in films. GAF CORP. Jan. 6, 1969 [Jan. 8, 1968], No. 712/69. Heading G1A. In an apparatus for detecting flaws in a running web by means of detecting the reflection from the film of a transversely scanning laser beam, pulses in the detector output resulting from the beam tra...

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1. Verfasser:	GORDON W. NICHOLS
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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