F42D 1/18

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9846020 Method and arrangement for providing explosive charging into a bore holeApr 10, 15Dec 19, 17Normet Oy
9816794 Blasting plugJan 17, 17Nov 14, 17Not available
9677358 Fluid release mechanism for a chemically-inflatable bagJan 28, 14Jun 13, 17Stemlock, Incorporated
9243878 Borehole plug inflation controlJan 20, 12Jan 26, 16Crinum IP Pty Ltd
8136449 Explosive powder plug and method of using the sameMay 17, 10Mar 20, 12Not available
7690307 Mechanical stemming apparatus for mining blasting operationsMar 31, 08Apr 06, 10Cauchos Industriales S.A., González González, Luis Germán,