FR477071A
(en)
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Contact devices
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DK15631C
(en)
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Electrical Contact Device.
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FR453654A
(en)
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Electric contact
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AT67967B
(en)
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Membrane contact device.
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CH51011A
(en)
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Plug contact device
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CH68240A
(en)
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Electrical contact device
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CH60858A
(en)
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Contact plug
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CH70508A
(en)
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Plug contact arrangement
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DK16081C
(en)
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Electrical Pressure Switch.
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CH62011A
(en)
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Plug switch
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DK28291C
(en)
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Electrical Plug Contact.
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ES49607A1
(en)
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An improved electrical contact device.
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DK16402C
(en)
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Device by electric Biure.
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ES54417A1
(en)
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Electrical coupling.
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CH67485A
(en)
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Plug contact
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CH66590A
(en)
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Plug contact
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ES52044A1
(en)
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An electrical switch.
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CH65158A
(en)
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Thermostatic contact device
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DK16556C
(en)
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Connection by electrical block devices.
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ES54323A1
(en)
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Improvements in electrical relay devices.
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ES52398A1
(en)
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Perfected electrical switch.
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ES54256A3
(en)
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An electrical coupling.
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DK15798C
(en)
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Alarm device.
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CH65818A
(en)
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Plug contact device on flashlights
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ES52947A1
(en)
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Automatic electrical switch.
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