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DE665640C
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Electric lamp, preferably with a galvanic battery
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DE679439C
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Cone loudspeaker with electrodynamic drive system
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DE616272C
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Housing for portable electric lamps with adjustable lighting effect
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DE466889C
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Device for pressing brass caps and placing them on carbon pins
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DE464415C
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Electrolyte for galvanic elements
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DE583912C
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Device for soldering the pole springs to galvanic elements in a continuous, automatic operation
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DE639410C
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Electric reflector lamp
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DE620254C
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Portable electric lamp with galvanic battery and focusable reflector
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DE524726C
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Glazing device for casting compound, especially for galvanic elements
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DE589314C
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Process for soldering the pole arresters to galvanic elements in a continuous, automatic process
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DE571298C
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Hand cutting machine for the electrode caps of galvanic elements
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