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DE692574C
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Counter system
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DE692642C
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Process for the manufacture of tension insulators
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DE625383C
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Window stay
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DE585914C
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Process for the production of silver coatings on pellets from phenol-aldehyde condensation products
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DE605589C
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Terminal arrangement for testing electrical measuring devices such as counters and wattmeters without interrupting the power output
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DE539488C
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Device for testing the insulation resistance of insulating materials and objects with direct current of variable strength
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DE524666C
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Process for the production of press dies
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DE581226C
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Branch device for electrical lines with an insulating plate separating the main and branch lines
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DE477982C
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Counter board
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DE483417C
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Main line junction box
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DE397538C
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Device for separating sections of the catenary of electric railways
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DE550624C
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Earth connection for electrical apparatus
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