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Sigri Elektrographit Gesellschaft mit Beschrankter Haftung
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Meitingen bei Augsburg, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Vacuum support for burst protection device
Patent number
4,315,575
Issue date
Feb 16, 1982
Sigri Elektrographit Gesellschaft mit Beschrankter Haftung
Erwin Schwarz
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Column seal
Patent number
4,255,363
Issue date
Mar 10, 1981
Sigri Elektrographit Gesellschaft mit Beschrankter Haftung
Wilhelm Geiger
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Flexible graphite sheet material treated with an alkali metal salt...
Patent number
4,216,266
Issue date
Aug 5, 1980
Sigri Elektrographit Gesellschaft mit Beschrankter Haftung
Alfred Hirschvogel
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Joining together shaped bodies of polytetrafluoroethylene
Patent number
4,211,594
Issue date
Jul 8, 1980
Sigri Elektrographit Gesellschaft mit Beschrankter Haftung
Gunter Freitag
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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last 30 patents
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