Class 330 AMPLIFIERS
| Printable Version[PDF] See notes regarding proper use of US-to-IPC Concordances. | ||
| U.S. Subclass | IPC8 Subclass | IPC8 Group |
|---|---|---|
| 1A | G 05 B | 7 / 02 |
| 1A | G 05 B | 9 / 03 |
| 1A | G 05 B | 9 / 05 |
| 1R | H 03 F | 1 / 00 |
| 2 | G 01 R | 19 / 00 |
| 2 | G 01 R | 21 / 00 |
| 2 | G 01 R | 23 / 00 |
| 3 | H 03 F | 5 / 00 |
| 4 | H 01 S | 1 / 00 |
| 4.5 | H 03 F | 7 / 00 |
| 4.6 - 4.7 | H 03 F | 7 / 06 |
| 4.8 - 4.9 | H 03 F | 7 / 00 |
| 5 | H 01 S | 1 / 00 |
| 5 - 5.5 | H 03 F | 3 / 04 |
| 6 | H 03 F | 15 / 00 |
| 7 | H 03 F | 11 / 00 |
| 8 | H 03 F | 9 / 00 |
| 9 | H 03 F | 1 / 02 |
| 10 | H 03 F | 3 / 38 |
| 11 - 41 | H 03 F | 3 / 00 |
| 42 | H 03 F | 1 / 00 |
| 43 | H 03 F | 3 / 58 |
| 44 | H 03 F | 3 / 54 |
| 45 | H 03 F | 3 / 56 |
| 46 - 48 | H 03 F | 3 / 54 |
| 49 | H 03 F | 1 / 20 |
| 49 | H 03 F | 3 / 60 |
| 50 - 51 | H 03 F | 1 / 14 |
| 52 | H 03 F | 3 / 66 |
| 53 - 57 | H 03 F | 3 / 60 |
| 55 | H 03 F | 3 / 26 |
| 58 | H 03 F | 13 / 00 |
| 59 | H 03 F | 17 / 00 |
| 60 | H 03 F | 1 / 00 |
| 61A - 61R | H 03 F | 3 / 12 |
| 61A | H 03 F | 3 / 60 |
| 61A | H 04 B | 3 / 18 |
| 61R | G 11 C | 11 / 44 |
| 61R | H 03 F | 19 / 00 |
| 62 | H 03 F | 15 / 00 |
| 63 | H 03 F | 9 / 00 |
| 64 | H 03 F | 1 / 08 |
| 65 - 68 | H 03 F | 1 / 00 |
| 69 | H 03 F | 3 / 45 |
| 70 - 74 | H 03 F | 1 / 00 |
| 75 - 79 | H 03 F | 1 / 36 |
| 76 - 78 | H 03 F | 1 / 16 |
| 77 | H 03 F | 3 / 28 |
| 78 | H 03 F | 3 / 50 |
| 80 | H 03 F | 1 / 16 |
| 81 - 111 | H 03 F | 1 / 36 |
| 81 - 82 | H 03 F | 3 / 28 |
| 83 | H 03 F | 3 / 34 |
| 84 - 85 | H 03 F | 3 / 68 |
| 87 - 95 | H 03 F | 3 / 52 |
| 88 - 95 | H 03 F | 1 / 22 |
| 96 | H 03 G | 3 / 20 |
| 97 | H 03 F | 3 / 36 |
| 98 - 100 | H 03 F | 1 / 24 |
| 98 - 100 | H 03 F | 3 / 52 |
| 103 - 104 | H 03 F | 3 / 68 |
| 108 - 109 | H 03 F | 3 / 52 |
| 112 | H 03 F | 1 / 40 |
| 113 - 114 | H 03 F | 1 / 00 |
| 115 | H 03 F | 3 / 28 |
| 116 - 117 | H 03 F | 3 / 02 |
| 118 | H 03 F | 3 / 28 |
| 119 | H 03 F | 3 / 30 |
| 120 - 123 | H 03 F | 3 / 28 |
| 121 | H 03 F | 3 / 36 |
| 124D - 126 | H 03 F | 3 / 68 |
| 127 | H 03 G | 3 / 00 |
| 127 - 131 | H 03 G | 3 / 20 |
| 132 - 134 | H 03 G | 5 / 16 |
| 133 - 134 | H 03 G | 9 / 00 |
| 135 | H 03 G | 11 / 00 |
| 136 - 142 | H 03 G | 3 / 20 |
| 143 - 145 | H 03 F | 1 / 30 |
| 144 - 145 | H 03 G | 3 / 20 |
| 146 - 148 | H 03 F | 3 / 00 |
| 146 | H 03 F | 3 / 26 |
| 147 - 148 | H 03 F | 3 / 68 |
| 147 - 148 | H 03 F | 5 / 00 |
| 149 | H 03 F | 1 / 26 |
| 149 | H 03 F | 1 / 30 |
| 150 | H 03 F | 1 / 22 |
| 150 | H 03 F | 3 / 18 |
| 151 | H 03 F | 1 / 00 |
| 152 - 154 | H 03 F | 1 / 22 |
| 155 - 158 | H 03 F | 1 / 00 |
| 158 - 159 | H 03 F | 3 / 52 |
| 159 | H 03 F | 3 / 34 |
| 160 - 167 | H 03 F | 1 / 00 |
| 161 | H 03 F | 3 / 34 |
| 163 | H 03 F | 3 / 36 |
| 168 | H 03 F | 3 / 52 |
| 169 - 171 | H 03 F | 1 / 00 |
| 172 - 173 | H 03 F | 3 / 52 |
| 173 | H 03 F | 3 / 36 |
| 174 - 180 | H 03 F | 1 / 00 |
| 174 | H 03 F | 13 / 00 |
| 181 - 182 | H 03 F | 3 / 36 |
| 183 - 184 | H 03 F | 3 / 34 |
| 185 | H 03 F | 1 / 00 |
| 185 | H 03 F | 3 / 00 |
| 186 - 187 | H 03 F | 3 / 52 |
| 187 | H 03 F | 3 / 36 |
| 188 - 190 | H 03 F | 1 / 00 |
| 188 - 190 | H 03 F | 3 / 00 |
| 191 | H 03 F | 3 / 36 |
| 192 | H 03 F | 1 / 00 |
| 192 | H 03 F | 3 / 00 |
| 193 - 194 | H 03 F | 3 / 52 |
| 194 | H 03 F | 3 / 36 |
| 195 - 197 | H 03 F | 1 / 00 |
| 195 - 197 | H 03 F | 3 / 00 |
| 198 | H 03 F | 3 / 36 |
| 198 | H 03 F | 3 / 52 |
| 199 - 206 | H 03 F | 1 / 00 |
| 207A | H 03 F | 1 / 04 |
| 207A | H 03 F | 1 / 34 |
| 207A | H 03 F | 3 / 217 |
| 207P | H 03 F | 1 / 52 |
| 207P | H 03 F | 3 / 30 |
| 207P | H 03 G | 3 / 20 |
| 207R | H 03 F | 3 / 02 |
| 207R | H 03 F | 3 / 40 |
| 207R | H 04 B | 7 / 165 |
| 250 | H 03 F | 3 / 04 |
| 251 | H 03 F | 3 / 217 |
| 252 - 261 | H 03 F | 3 / 45 |
| 262 | H 03 F | 3 / 26 |
| 263 - 264 | H 03 F | 3 / 18 |
| 265 - 276 | H 03 F | 3 / 26 |
| 277 | H 03 F | 3 / 16 |
| 278 | H 03 G | 3 / 00 |
| 279 - 281 | H 03 G | 3 / 10 |
| 282 | H 03 G | 3 / 00 |
| 283 | H 03 G | 3 / 12 |
| 284 | H 03 G | 3 / 00 |
| 285 | H 03 G | 3 / 10 |
| 286 - 287 | H 03 F | 3 / 60 |
| 288 - 289 | H 03 F | 3 / 04 |
| 290 | H 03 F | 1 / 30 |
| 291 | H 03 F | 1 / 38 |
| 292 | H 03 F | 1 / 14 |
| 293 | H 03 F | 1 / 08 |
| 293 - 294 | H 03 F | 1 / 34 |
| 294 | H 03 F | 1 / 38 |
| 295 | H 03 F | 3 / 68 |
| 296 - 299 | H 03 F | 3 / 04 |
| 298 | H 02 H | 7 / 20 |
| 299 | H 03 F | 3 / 68 |
| 300 | H 03 F | 3 / 16 |
| 301 - 306 | H 03 F | 3 / 04 |
| 302 - 306 | H 03 F | 3 / 191 |
| 307 | H 03 F | 3 / 14 |
| 308 | H 03 F | 3 / 08 |
| 309 | H 03 F | 3 / 14 |
| 310 - 311 | H 03 F | 3 / 04 |
| 310 - 311 | H 03 F | 3 / 68 |