4. Hydraulic and earth engineering
  5. Drainage or irrigation

Vincent P. Johnston

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Cast-in-place concrete slab pouring form

Static structures (e.g. – buildings) – Specified terranean relationship – With waterproofing means; e.g. – covering – coating – or lamina
Patent

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Gravity feed watering system for plants

Hydraulic and earth engineering – Drainage or irrigation
Patent

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Plant shelter

Plant husbandry – Cover – shade – or screen – With irrigating means
Patent

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Stock watering trough and stepped base therefor

Animal husbandry – Watering or liquid feed device – Temperature-controlling
Patent

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Windowed shelter for plants

Plant husbandry – Cover – shade – or screen – With irrigating means
Patent

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Profile ID: LFUS-PAI-P-19228

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