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Class Information
Number: 102/329
Name: Ammunition and explosives > Blasting > Contained pressurized fluid blasting charge > Contained fluid exit seal controlled by fluid pressure > Valve-type seal
Description: Subject matter wherein the closure for the outlet of the container is a valve.

Sub-classes under this class:

Class Number Class Name Patents
102/330 Automatically operated 3

Patents under this class:

Patent Number Title Of Patent Date Issued
5000516 Apparatus for rapidly generating pressure pulses for demolition of rock having reduced pressure head loss and component wear Mar. 19, 1991
4998479 Smoke generating device with rechargable cartridge Mar. 12, 1991
4863220 Highly reliable method of rapidly generating pressure pulses for demolition of rock Sep. 5, 1989
4541342 Pyrotechnic device with metal diaphragm and metal insert Sep. 17, 1985

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