| 摘要 |
A keyboard apparatus according to this invention has a key button being formed with a key stem in a body to directly assemble with a key holder and separate from it. The key apparatus has a movable contact and a fixed contact of membrane structure, and has a key switch above the contact portion. The key switch comprises a rubber spring being formed above the contact position, a key holder to receive and guide a key button from upper side, and key button.
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