FIELD: agriculture. SUBSTANCE: this relates to greenhouses used for growing vegetables. Packer has two fixing strips 4, 5 connected by ends to each other. Fixing strips 4, 5 create cylindrical surface by their outer surface. Strips are slightly bent towards each other. EFFECT: higher efficiency. 2 dwg
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Authors
Dates
1998-02-27—Published
1994-09-27—Filed