4. Electrical resistors
  5. Mechanically variable
  6. Movable contact electrically adjustable over length of...

Bengt A. Persson

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Device for ventilating a closed conduit system

Heating systems – Water – Expansion tanks
Patent

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Flush system

Baths – closets – sinks – and spittoons – Flush closet – Normally empty tank
Patent

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Position indicator

Electrical resistors – Mechanically variable – Movable contact electrically adjustable over length of...
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Ventilation valve

Fluid handling – With leakage or drip collecting – Collector for waste liquid derived from solid – gas or vapor
Patent

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Profile ID: LFUS-PAI-P-55546

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