5 Utility Patents
#260 in Essen
#52,395 in Germany
#827,581 in the World
Forward Citations = 288
Company Filing History:
Krupp Koppers Gmbh
Bergwerksverband Gmbh
Uhde Gmbh
4. 1 out of 17
Mannesmannrohren-werke Ag
5. 1 out of 6,662

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