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Flexible Continuous Grout-filled Packer for Use With a Water Infusion System.
Sainato-A; Cervik-J; Prosser-LJ Jr.
U S Patent 1981 Nov; (4):
Issue of Publication
U.S. Patent No. 4,300,631, November 17, 1981
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division