suchen [und] SGB KS 63-[12][0123456789][0123456789][0123456789]* or KS 63-3[0123][0123456789][0123456789]* or KS 63-34[012345678][0123456789]* or KS 63-349[0123456789]* or KS 63-0[123456789][0123456789][0123456789]* or KS 63-00[123456789][0123456789]* or KS 63-000[123456789]*