diameter teken
U+2300
U+2300..U+23FF
Miscellaneous Technical Unicode block.
U+2300
U+2301
U+2302
U+2303
U+2304
U+2305
U+2306
U+2307
U+2308
U+2309
U+230A
U+230B
U+230C
U+230D
U+230E
U+230F
U+2310
U+2311
U+2312
U+2313
U+2314
U+2315
U+2316
U+2317
U+2318
U+2319
U+231A
U+231B
U+231C
U+231D
U+231E
U+231F
U+2320
U+2321
U+2322
U+2323
U+2324
U+2325
U+2326
U+2327
U+2328
U+2329
U+232A
U+232B
U+232C
U+232D
U+232E
U+232F
U+2330
U+2331
U+2332
U+2333
U+2334
U+2335
U+2336
U+2337
U+2338
U+2339
U+233A
U+233B
U+233C
U+233D
U+233E
U+233F
U+2340
U+2341
U+2342
U+2343
U+2344
U+2345
U+2346
U+2347
U+2348
U+2349
U+234A
U+234B
U+234C
U+234D
U+234E
U+234F
U+2350
U+2351
U+2352
U+2353
U+2354
U+2355
U+2356
U+2357
U+2358
U+2359
U+235A
U+235B
U+235C
U+235D
U+235E
U+235F
U+2360
U+2361
U+2362
U+2363
U+2364
U+2365
U+2366
U+2367
U+2368
U+2369
U+236A
U+236B
U+236C
U+236D
U+236E
U+236F
U+2370
U+2371
U+2372
U+2373
U+2374
U+2375
U+2376
U+2377