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method for attaching a spannbandes plunger, a fernsehbildroehre and following this procedure produced implosionssichere bildroehre gloeilampenfabrieken, eindhoven (netherlands)
method for attaching a spannbandes plunger, a fernsehbildroehre and following this procedure produced implosionssichere bildroehre gloeilampenfabrieken, eindhoven (netherlands)