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| Number | Title | Issue Date |
| 5893844 | Indwelling needle set Disclosed is an indwelling needle set comprising a cylinder provided with a flexible outer needle composed of a synthetic resin at the tip thereof and a plunger which is inserted in the cylinder and is provided with a metallic inner needle at the tip ther... | 04/13/1999 |
| 5520193 | Blood collecting needle with vein indicator A needle assembly for evacuated blood collection tubes or containers comprises a single needle cannula, a needle cannula support made of a translucent or transparent material provided on the middle portion of the needle cannula, a blood flow confirmation ... | 05/28/1996 |
