| All Patents in class 81/3.2 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 922,080 | May 18, 1909 | G.W. Bowers | Watch Makers Screwdriver | watchmaker |
| 3,192,803 | Jul. 06, 1965 | G.J. Federighi | Cork ejector with pressurized liquid propellant | non worm cork extractors |
| 3,815,448 | Jun. 11, 1974 | G. Artmer | Corkscrew | self and partial cork pullers |
| 4,317,390 | Mar. 02, 1982 | M. Nakayama | Bottle opener | non worm cork extractors |
| 4,637,283 | Jan. 20, 1987 | P. Steiner, R.L. Bakoschek, L. Bertram | Corkscrew device | self and partial cork pullers |
| 4,791,834 | Dec. 20, 1988 | G.J. Federighi | Pressure metering cork extractor | non worm cork extractors |
| 4,955,261 | Sep. 11, 1990 | Y. Chiang | Automatic corkscrew | self and partial cork pullers |
| 5,012,703 | May 07, 1991 | H. Reinbacher | Cork removal apparatus | non worm cork extractors |
