How do merchants in Chicago keep their windows from gathering frost on them? We have a plate glass front and the frost gets so thick on it that upon meltin...
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1893년
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다운로드다국어 초록 (Multilingual Abstract)
How do merchants in Chicago keep their windows from gathering frost on them? We have a plate glass front and the frost gets so thick on it that upon meltin...
How do merchants in Chicago keep their windows from gathering frost on them? We have a plate glass front and the frost gets so thick on it that upon melting the water runs back in the store for several feet; the little trough on bottom of sash freezes up. There is a way of ventilating a window or letting air in, but we don't know how it is done; if yon can give us any light on the subject we will be greatly obliged to you.