Detonating cord and continuity verification system
 A fuse or ignition conductor for conducting ignition from an igniter to a remotely located primer, as used in the detonation of explosives. The ignition conductor contains a light transmitting fiber optic cord bound to the ignition conducting material of the fuse in such manner that if the ignition conducting material is broken, the fiber optic cord is also broken. The claimed subject matter further includes assemblies containing means at the primer end for transmitting light back to the igniter end. 
G F C
G01B F42C C06C
inventional inventional inventional
Robert A. James D. Richard E.
Ziemke Heckelman Walker