Title:
Method and apparatus for detonating explosive devices in bore holes
United States Patent 2873675


Inventors:
Lebourg, Maurice P.
Application Number:
US36221453A
Publication Date:
02/17/1959
Filing Date:
06/17/1953
Assignee:
Borg, Warner
Primary Class:
Other Classes:
89/1.15
International Classes:
C06C5/06; E21B43/117; E21B43/1185
View Patent Images:
US Patent References: