B - Operations – Transporting – 32 – B
Inventor
B - Operations, Transporting
32
B
Inventor
Circuit board for printed circuits
Electrically insulated copper-plated tubes and plates
Electrically insulating carrier material for the production...
Impregnating varnish including phenol-resol resin, diphenyl...
Method for producing non-flammable laminated plastics
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