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DE2713280A1
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FIRE DETECTION SYSTEM WITH IONIZATION DETECTORS SWITCHED IN PARALLEL
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US4053777A
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Accident- and tampering-proof attachment means of an object to a stationary support
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CA1049643A
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Attachment means of an object to a support
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GB1518056A
|
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Means for attaching an object to a support
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CA1026015A
|
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Ionization analyzing air pollution smoke and fire alarm device
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DE2630572A1
|
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Fixing for electronic alarm annunciator on a coaxial base - has rotary support plate with spring in bush acting against extension on module
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DE2539655B1
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Detectors, in particular fire detectors
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GB1467592A
|
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Ionization fire alarm
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NL7416638A
|
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Ionization smoke detector.
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US3935465A
|
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Ionization analyzing air pollution, smoke and fire alarm device
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GB1426777A
|
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Ionization fire alarm
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