| 摘要 |
1,078,272. Blasting. DYNAMIT NOBEL A.G. Aug. 20, 1964 [Aug. 20, 1963], No. 34162/ 64. Heading E1F. [Also in Division F3] Shot firing involves the use of an explosive charge consisting of one or more explosive cartridges contained in a single or double walled tube and, prior to being fired, being directly or indirectly surrounded by water contained within the outer wall of the tube that is formed of synthetic thermoplastics material. The water may contain an additive such as a flameextinguishing or gas-absorbing material. |
