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| Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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| Class 242 | WINDING, TENSIONING, OR GUIDING |
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![[List of Pre Grant Publications for class 242 subclass 159]](../as.gif) | ![[List of Patents for class 242 subclass 159]](../ps.gif) | 159 | WOUND STORAGE PACKAGE |
| | 160.1 |  Convolute coil (e.g., wound web) |
| | 163 | Interconvolutionary strand delivery |
| | 164 | Strand end feature |
| | 166 | Plural windings |
| | 168 | Distorted winding |
| | 170 | Housing or outer peripheral support |
| | 172 | Strand restraining or snarl preventing means |
| | 174 | Particular winding |
| | 324 | UNWINDING AND REWINDING A MACHINE CONVERTIBLE INFORMATION CARRIER (E.G., MAGNETIC TAPE OR PHOTOGRAPHIC FILM) |
| | 324.1 | Carrier helically or randomly wound (e.g., magnetic wire, edge wound film, etc.) |
| | 325 | Endless coiled carrier (i.e., closed loop) |
| | 325.1 |  Wound into superposed coil pair |
| | 325.2 | Having carrier responsive control |
| | 325.3 | Reversible |
| | 326 | Cartridge storage |
| | 327 | Particular coil support |
| | 328 | Unwinding from coil center |
| | 329 | Winding into coil center |
| | 330 | Simultaneously driven carriers (e.g., separate optic and sound webs) |
| | 331 | Intermediate storage (e.g., low inertia bin) |
| | 332 | Including threading |
| | 332.1 | Having particular automated control |
| | 332.3 | Having pneumatic assist |
| | 332.4 | Having leader gripper or coupling |
| | 332.5 | Having rotary extractor (e.g., stripper) |
| | 332.7 | Having carrier to spool attachment means |
| | 333 | Automated stop or reverse |
| | 333.1 | Diverse control signal inputs |
| | 333.2 | Carrier supported signal |
| | 333.3 | Carrier engaging tension sensor |
| | 333.5 | Coil diameter sensor |
| | 333.6 | Coil rotation sensor |
| | 334 | Carrier speed or tension control |
| | 334.1 | Plural speeds |
| | 334.2 | Diverse signal inputs |
| | 334.4 | Tachometer-type signal device |
| | 334.5 | Coil diameter or weight responsive sensor |
| | 334.6 | Carrier tension responsive signal |
| | 335 | Cartridge system (i.e., cartridge work station or cartridge) |
| | 336 | Adaptive or convertible |
| | 337 | Plural (i.e., multiple cartridges per work station) |
| | 338 | With insertion responsive component |
| | 339 | Cartridge ejector |
| | 340 | With particular drive mechanism |
| | 341 | Coil-to-coil cartridge |
| | 342 |  With particular drive coupling |
| | 343 | With brake or lock |
| | 344 | With indicator or detector |
| | 345 | With particular coil support |
| | 346 | With particular guide or guard |
| | 347 | With particular housing construction |
| | 348 | Single coil cartridge (e.g., film magazine) |
| | 349 | With particular drive |
