| 摘要 |
A method of fabricating a hand calculator utilizing die press punching to form its three parts. A circular stationary base plate is punched with a central, circular, raised, beveled portion which is then rigidly fixed to a circular stationary top plate by means of flared eyelets. Between these two parts a circular movable scale plate is movably inserted. The scale is etched with scales, and punched with a plurality of holes about its periphery to allow for pencil point movement.
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