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DE689329C
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Gas meter with creeping control and crank drive
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DE678611C
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Device to compensate for the measurement errors of gas meters with creeping control and crank drive
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DE670943C
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Device to compensate for the measurement errors of gas meters with creeping control and crank drive
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DE640053C
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Device to compensate for the measuring errors of gas meters with three or more measuring chambers and creeping control
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DE607724C
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Control device with liquid seal for gas meter
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DE682518C
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Device to compensate for measuring errors of gas meters with two measuring chambers, sudden reversal and stroke distance measurement
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DE497153C
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Rapid reversal for the controls of gas meters with movable walls
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DE532902C
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Manual transmission for counters, especially for gas meters
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DE474264C
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Gas meter with movable walls and control bells with liquid lock
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DE523253C
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Wet bell gas meter with two measuring rooms and reversal of the gas supply by a tilting clamping mechanism
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DE429889C
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Gas meter with vibrating bells
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DE506833C
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Swinging control bell for gas meter
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DE414920C
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Device for the electrical heating of liquids and gases by induction
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DE442008C
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Injection carburetor
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DE343870C
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Carburettor with self-regulating fuel flow
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DE341911C
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Carburettor with self-regulating fuel flow
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DE528667C
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Device for detecting leaks in the gas pipe network, especially in long-distance gas lines
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