| Numer bazowy |
Klasa | Towar / Usługa | Numer seryjny (PL) |
Numer seryjny (EN) |
Numer seryjny (FR) |
| 160088 | 16 | cyfry [czcionki drukarskie] | C0228 | N0131 | C0750 |
| 340013 | 34 | cygara | C0231 | C0504 | C0818 |
| 340025 | 34 | cygaretki | C0233 | C0503 | C0838 |
| 340015 | 34 | cygarnice | C0234 | C0486 | E0520 |
| 340022 | 34 | cygarniczki | C0235 | C0493 | F0473 |
| 010227 | 1 | cyjanotypia (roztwory do -) | C0239 | C1122 | C1665 |
| 080237 | 8 | cykliny ręczne [narzędzia] | C0240 | S0163 | R0015 |
| 090172 | 9 | cyklotrony | C0241 | C1141 | C1693 |
| 300036 | 30 | cykoria (substytut kawy) | C0242 | C0408 | C0738 |
| 310030 | 31 | cykoria [sałata] | C0243 | C0410 | C0737 |
| 170033 | 17 | cylindry (uszczelki do -) | C0245 | C1143 | C1698 |
| 070139 | 7 | cylindry do maszyn | C0247 | C1144 | C1694 |
| 070446 | 7 | cylindry do silników | C0248 | C1145 | C1696 |
| 070140 | 7 | cylindry drukarskie | C0249 | P0695 | C1697 |
| 250076 | 25 | cylindry [kapelusze] | C0246 | T0364 | H0047 |
| 150032 | 15 | cymbały | C0250 | C1147 | C1700 |
| 010230 | 1 | cymen | C0251 | C1148 | C1701 |
| 060373 | 6 | cyna (Sn) | C0253 | T0257 | E0473 |
| 300030 | 30 | cynamon [przyprawa] | C0254 | C0512 | C0169 |
| 060223 | 6 | cynk (Zn) | C0255 | Z0002 | Z0003 |
| 020081 | 2 | cynkowa (biel -) [pigment] | C0256 | Z0003 | G0343 |
| 400027 | 40 | cynowanie | C0013 | T0047 | E0076 |
| 410009 | 41 | cyrki | C0014 | C0037 | C0054 |
| 160096 | 16 | cyrkle kreślarskie | C0257 | C0748 | C1092 |
| 060264 | 6 | cyrkon (Zr) | C0258 | Z0007 | Z0005 |
| 150022 | 15 | cytry | C0259 | Z0008 | C0903 |
| 010199 | 1 | cytrynowy (kwas -) do celów przemysłowych | C0260 | C0515 | C0904 |
| 310032 | 31 | cytryny | C0261 | L0152 | C0905 |
| 030056 | 3 | cytryny (olejki eteryczne -) | C0262 | L0150 | C0906 |
| 210222 | 21 | czajniczki do herbaty | C0263 | T0110 | T0237 |
| 110303 | 11 | czajniki elektryczne | C0265 | K0013 | B0713 |
| 250012 | 25 | czapki [nakrycia głowy] | C0267 | C0104 | B0639 |
| 200135 | 20 | czasopisma (stojaki na -) | C0269 | M0014 | P0816 |
| 160033 | 16 | czasopisma [periodyki] | C0270 | P0262 | P0329 |
| 160243 | 16 | czasopisma [periodyki] | C0271 | M0015 | R0298 |
| wstecz | 1 | -10 | ... | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | ... | +10 | +25 | 220 | dalej |