Patent classifications
H
ELECTRICITY
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H05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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H05K
PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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3/00
Apparatus or processes for manufacturing printed circuits
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H05K3/02
in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
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H05K3/04
the conductive material being removed mechanically, e.g. by punching
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H05K3/045
by making a conductive layer having a relief pattern, followed by abrading of the raised portions
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