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3428091
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Information
Patent Grant
3428091
References
Source
Patent Number
3,428,091
Date Filed
Not available
Date Issued
Tuesday, February 18, 1969
55 years ago
CPC
F15B1/18 - Anti-extrusion means
F15B1/20 - fixed to the separating means
F15B2201/205 - using gas
F15B2201/21 - using springs
F15B2201/3152 - the flexible separating means being bladders
F15B2201/411 - having valve means
F15B2201/4155 - having valve means
F15B2201/43 - Anti-extrusion means
F15B2201/435 - being fixed to the separating means
US Classifications
138 - Pipes and tubular conduits
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