4. Dispensing
  5. Inspection devices
  6. Sight openings

Vincent B. Steffen

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Aspirating panel for grain bins

Drying and gas or vapor contact with solids – Apparatus – Houses – kilns – and containers
Patent

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Grain bin door

Dispensing – Inspection devices – Sight openings
Patent

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Grain drying apparatus

Drying and gas or vapor contact with solids – Apparatus – Houses – kilns – and containers
Patent

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Grain drying apparatus

Pipe joints or couplings – With casing – lining or protector – Insulated
Patent

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Pressure reducing exhaust method and structure for ventilated gr

Patent

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Profile ID: LFUS-PAI-P-888032

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