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PPM Pure Metals GmbH
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Langelsheim, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Production of phenylarsines
Patent number
5,004,821
Issue date
Apr 2, 1991
PPM Pure Metals GmbH
Hartmut Hofmann
C30 - CRYSTAL GROWTH
Patents Applications
last 30 patents
Trademark
last 30 trademarks
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Trademark
79109006 - RMO REINSTMETALLE OSTERWIECK
Serial number
79109006
Registration number
4412611
Filing date
Jan 2, 2012
PPM Pure Metals GmbH
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry