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FR814737A
(en)
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Electrical switches
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FR814518A
(en)
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Improvements made to electrical switches
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FR806292A
(en)
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Electric turbo-generator group
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FR825168A
(en)
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Electrical switches
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FR821766A
(en)
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The electric cables
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FR823572A
(en)
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Electric batteries
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FR820647A
(en)
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Improvements to electrical switches
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FR818454A
(en)
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Improvements to electrical contacts
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SU48838A1
(en)
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Electric current breaker
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FR828553A
(en)
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Improvements to electrical circuit breakers
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CH205650A
(en)
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Electric gas switch.
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FR811554A
(en)
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Auto-pneumatic circuit breaker
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FR801759A
(en)
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Electric circuit breaker
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FR825301A
(en)
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Electric cautery
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FR821126A
(en)
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Insulating separator
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CH200809A
(en)
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Electric gas switch.
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CH202635A
(en)
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Electric circuit breaker.
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FR803060A
(en)
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Improvements to electric fuse circuit breakers
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DK55393C
(en)
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Liquid-insulated electric AC switch.
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FR809626A
(en)
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Combination electric switch
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FR801409A
(en)
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Improvements to electrical insulators
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FR822379A
(en)
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Improvements to electrical insulators
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FR805180A
(en)
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Electric switch
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FR821730A
(en)
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Electric transformer
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FR831197A
(en)
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Power disconnector
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