| 摘要 |
1,171,989. Dental syringes. SIEMENS A.G. 29 March, 1967 [14 April, 1966], No. 20843/69. Divided out of 1,171,988. Heading A5R. The subject-matter of this specification is identical with that described in the Specification 1,171,988 but the claims are concerned with a dental hand appliance for dispensing fluid, the appliance comprising a shank having a foot end with a connection for the fluid supply and a head end with a nozzle for discharging the fluid, the shank tapering in wedgeshaped manner from the head end to the foot end and being polygonal in cross-section. |
