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GB502959A
|
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Improvements in and relating to secondary galvanic cells and electrodes of such cells
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DE583868C
|
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Machine for bending lead plates, which are provided with parallel, equidistant rows of holes
|
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GB353153A
|
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Improvements in folding machines for the folding of sheet metal in the manufacture of accumulator plates or grids
|
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GB353154A
|
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Method of and apparatus for punching and crimping or corrugating sheet metal
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DE497575C
|
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Electric battery in which the electrolyte flows through the battery plates
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GB296660A
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Improvements in and relating to storage batteries
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GB269122A
|
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Improvements in and relating to storage batteries
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DE486505C
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Accumulator plate
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DE497726C
|
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Accumulator vessel with sealing flanges
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