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US3549845A
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Contact spring assembly for selectors of the coordinate selector type
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GB1120423A
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Improvements in selectors of the co-ordinate selector type
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DE1236073B
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Process for creating dimensionally accurate air gaps in electromagnetic devices
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GB806428A
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Improvements in or relating to polarized electromagnetic devices
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GB808142A
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Improvements in and relating to polarized relays
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GB804762A
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Improvements in and relating to electric contact spring sets
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GB770479A
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Improvements in and relating to polarized electromagnetic control devices
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GB730125A
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Improvements in or relating to electric switching devices having spring contact members
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GB748218A
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Arrangement of electromagnetic control magnets preferably for electric switching apparatus
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GB748256A
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Improvements in or relating to electromagnetic control magnets
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GB700738A
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Improvements in or relating to electrical control magnets
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DE965430C
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Electric control magnet
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GB690674A
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Improvements in or relating to connecting devices having rows of contact members
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DE955705C
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Electrical switchgear with fixed and movable contact springs and a toothed operating rail
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DE966844C
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Electric control magnet
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GB676482A
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Telephone transmitters
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GB674439A
|
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Improvements in contact-spring assemblies for electric switching devices
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GB694363A
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Improvements in electrical control magnets
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GB660806A
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Improvements in or relating to electro-magnetic switches
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GB656671A
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Improvements in or relating to relays and associated selecting mechanism in automatic telephone systems
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