| 摘要 |
The serum application for use in a cataphoretic apparatus comprises a penpoint which is mounted on the lower end of a plate-shaped penpoint support member, the upper end of which is formed with a hook to permit the support member to be suspended from a support arm to maintain the serum applying surface of the penpoint in parallel relationship with the surface of a serum bearing member. The upper end face of a support arm which is engaged by the hook is formed to lie in a plane parallel to the surface of the serum bearing member. The penpoint support member is vertically slidable relative to the vertical major surface of the support arm by providing a guide pin and guide slot arrangement.
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