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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H05K3/46
Manufacturing multilayer circuits
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H05K3/4602
characterized by a special circuit board as base or central core whereon additional circuit layers are built or additional circuit boards are laminated
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H05K3/4605
made from inorganic insulating material
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