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GB233437A
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Improvements in and relating to refill batteries
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US1528811A
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Electric pocket lamp
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GB211694A
|
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Improvements in and relating to portable electric lamps
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DE389766C
|
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Dry battery or filling battery for electric flashlights
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DE343335C
|
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Method for preparing insulating strips for dry batteries in flashlights and the like. like
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DE341745C
|
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Process for the production of small electric batteries, elements or the like.
|
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DE336814C
|
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Small electric battery with spring-loaded pole connectors
|
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DE331582C
|
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Process for the production of dry batteries for flashlights
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