Process for Preparing Food for Silk Worms, US Patent No. 1990343
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US Patent 1,990,343, granted Feb. 5, 1935, describes a process for making artificial food for silkworms to replace mulberry leaves. The food is made from soybean that is soaked, ground, boiled and pressed into a curd, then flavored with squeezed mulberry leaf or bud juice as an appetizing agent. The patent also describes forcing mulberry twigs to bud in a hothouse so juice is available out of season. It has one claim and no drawings.
- Type
- Patent
- Date
- February 5, 1935
- Language
- English
- Pages
- 1
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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