Article
科學常識 電氣打字機 - Common knowledge in science, the electrical typewriter

Column title: 科學常識 - General scientific knowledge
Subject matters: 新知 - new knowledge,
Language level: Baihua

Keywords: invention, technology,

Image
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Subject matters: Ornament,
Medium: Line drawing

Function: Unrelated to Article/Ad

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電器打字機 - The electrical typewriter

Subject matters: Still life,
Medium: Photograph-Monochrome

Function: Unrelated to Article/Ad

Keywords: electric equipment, invention,

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