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DE567251C
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Device for the electrical firing of explosives in several operating points from a safe point of view
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DE441205C
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Pack for electric ignition
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DE443552C
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Delay ignition
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DE439199C
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Electric igniter
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DE429400C
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Electric igniter
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DE431300C
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Waterproof electric igniter
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DE432465C
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Electric igniter
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DE422939C
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Process for the manufacture of electric ignition devices
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DE414478C
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Pole body for electric ignition
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DE429089C
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Procedure for dumping large series of explosive shots
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DE427452C
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Electric glow bridge igniter
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DE370195C
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Process to make metals and thin metal sheets or foils, in particular those made of copper or zinc, adhesive on fiber materials
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DE381099C
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Process for the production of electric head ignition
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DE441204C
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Process for the manufacture of electric ignition devices
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DE372317C
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Ignition head with free-standing glow wire
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DE428258C
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Process for the production of ignition heads for electric mine igniters
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DE322848C
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Method for sealing the lead discharge of pipe electrodes of electrical collectors
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DE381100C
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Process for the production of electric head ignition
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