| 264 / | HD | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| 500 | DF | DIRECT APPLICATION OF FLUID PRESSURE DIFFERENTIAL TO PERMANENTLY SHAPE, DISTORT, OR SUSTAIN WORK {14} |
| 523 | DF | .~ Including application of internal fluid pressure to hollow finite length parison to expand same into conformity with female mold part {10} |
| 529 | DF | .~.~ Including plural distinct steps of differential fluid pressure induced expansion {1} |
| 530 | | .~.~.~ In diverse female mold cavities |