Electric heating – Metal heating – By arc
Reexamination Certificate
2007-09-11
2007-09-11
Nguyen, Sang H. (Department: 2886)
Electric heating
Metal heating
By arc
C219S121670, C219S121720, C219S121830, C219S121710
Reexamination Certificate
active
11180369
ABSTRACT:
A light beam is used to cut a slot in a first side of substrate. An optical sensor monitors a surface of a second side of the substrate that is opposite the first side while cutting the slot. If the light beam breaks through the surface of the second side, the sensor detects the light beam.
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International Search Report and written opinion dated Oct. 23, 2006 for PCT/US2006/024027.
Campbell-Brown Iain
O'Brien Seamue
Scott Graeme
Hewlett--Packard Development Company, L.P.
Nguyen Sang H.
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