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A sealed crustless sandwich for providing a convenient sandwich without an outer crust which can be stored for long periods of time without a central filling from leaking outwardly.
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| Number | Title | Issue Date |
| 4958423 | Water-supplying cord and a tool for inserting a hose in it An electricity-supplying and water-supplying cord for use in dental surgery is made of a bendable, resilient member and has at least one hole for inserting electricity-supplying wires therethrough and one hole for inserting a water-supplying hose therein.... | 09/25/1990 |
| 4608980 | Laser hand piece A laser hand piece comprises a shank on which is attached the light emitting end of a laser transmission means, a head having a laser light reflecting means and a laser light converging means and a head attachment means for releasably attaching the head t... | 09/02/1986 |
| 4582332 | Spring chuck A spring chuck has a clamp member opening mechanism comprising a guide groove formed in a rotating shaft and inclined in one direction, a guide groove formed on a wall surface of a bar stopper and inclined in the other direction opposite to the one direct... | 04/15/1986 |
