Electric heating – Metal heating – By arc
Reexamination Certificate
2005-02-15
2005-02-15
Heinrich, Samuel M. (Department: 1725)
Electric heating
Metal heating
By arc
C219S522000
Reexamination Certificate
active
06855911
ABSTRACT:
A laser cutting machine includes a cover which is pivotably connected to a side of the base of the machine. Two supports are connected between the cover and the base so as to maintain the open status of the cover. Two hand access recesses are defined in the rear end of the cover which can be pivoted upward by only one person such that maintenance can be proceeded easily and large objects conveniently access the work top surface.
REFERENCES:
patent: 4985780 (1991-01-01), Garnier et al.
patent: 5183993 (1993-02-01), Sato et al.
patent: 5591361 (1997-01-01), Hostler et al.
Dennison Schultz Dougherty & MacDonald
Great Computer Corporation
Heinrich Samuel M.
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