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PCE
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Search for IPC and CPC classification codes or keywords
CPC Subgroup Additional Only
H05K 2203/1394

Covering open PTHs, e.g. by dry film resist or by metal disc

Full Title

Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00 > Moulding and encapsulation; Deposition techniques; Protective layers > Protective layers > Covering open PTHs, e.g. by dry film resist or by metal disc