DE412369C
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Automatic pressure consideration for flow meters for flowing media
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DE396315C
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Shut-off valve with consumption indicator
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DE358453C
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Float vapor meter
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DE363736C
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Float steam meter
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DE360445C
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Float steam meter
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DE352568C
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Float vapor meter
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DE329091C
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Shut-off valve with consumption indicator
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DE338074C
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Screw-down valve with display device
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DE513286C
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Vacuum cleaner mouthpiece
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DE510709C
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Vacuum cleaner with a tapping device
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DE369594C
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Integrator with friction disc
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DE354805C
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Float steam meter in which an integrator is moved by a lever
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DE359747C
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Integrator
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DE360606C
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Steam meter
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