CS191120B1 - Method of protection of the working,notably the entries,chambers,crosscuts from the effects of anomalous pressures of the rocks
- Google Patents
Method of protection of the working,notably the entries,chambers,crosscuts from the effects of anomalous pressures of the rocks
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Application filed by Jiri Chovanec, Josef Kolar, Petr Danninger, Eduard HyklfiledCriticalJiri Chovanec
Priority to CS749477ApriorityCriticalpatent/CS191120B1/cs
Publication of CS191120B1publicationCriticalpatent/CS191120B1/cs
CS749477A1977-11-151977-11-15Method of protection of the working,notably the entries,chambers,crosscuts from the effects of anomalous pressures of the rocks
CS191120B1
(en)
Process for improving the pressure dependence of the combustion of solid-grains or firearms propellants, and their application as components of solid-grains or firearms propellants