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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5/00
Casings, cabinets or drawers for electric apparatus
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H05K5/0213
Venting apertures; Constructional details thereof
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H05K5/0215
with semi-permeable membranes attached to casings
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