IPC XXXXXX, English version
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SECTION A – HUMAN NECESSITIES A01 A21 A22 A23 A24 A41 A42 A43 A44 A45 A46 A47 A61 A62 A63 A99

SECTION B – PERFORMING OPERATIONS; TRANSPORTING B01 B02 B03 B04 B05 B06 B07 B08 B09 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30 B31 B32 B41 B42 B43 B44 B60 B61 B62 B63 B64 B65 B66 B67 B68 B81 B82 B99

SECTION C – CHEMISTRY; METALLURGY C01 C02 C03 C04 C05 C06 C07 C08 C09 C10 C11 C12 C13 C14 C21 C22 C23 C25 C30 C40 C99

SECTION D – TEXTILES; PAPER D01 D02 D03 D04 D05 D06 D07 D21 D99

SECTION E – FIXED CONSTRUCTIONS E01 E02 E03 E04 E05 E06 E21 E99

SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING F01 F02 F03 F04 F15 F16 F17 F21 F22 F23 F24 F25 F26 F27 F28 F41 F42 F99

SECTION G – PHYSICS G01 G02 G03 G04 G05 G06 G07 G08 G09 G10 G11 G12 G21 G99

SECTION H – ELECTRICITY H01 H02 H03 H04 H05 H99