| 1961 TEXACO EXPERIMENT INC Electric Initiator |
| 1962 DAVID Delay Electric Explosion Initiator |
| 1961 ADELBERT Electric Initiator Patent Print |
| 1965 TALLEY CLAUDE Electric Initiator Patent |
| 1945 DU PONT Electric Blasting Initiator Patent |
| 1953 HORNE Static Resistant Electric Initiator |
| 1962 CLARK WENDALL Electric Initiator Patent |
| 1949 ZEBREE Delay Electric Initiator Patent |
| 1959 AMERICAN CYANAMID CO Electric Blasting Initiator |
| 1953 HERCULES POWDER LTD Electric Initiator Art |
| 1961 CARLTON Electric Initiator Patent Print Art |
| 1957 HORNE Static Resistant Electric Initiator |
| 1941 LOUGHEED Electric Blasting Initiator Patent |
| 1949 HANLEY Electric Initiator Ignition Composition |
| 1945 HANDFORTH Electric Blasting Initiator Art |
| 1967 HERCULES INC Electric Initiator Structure |
| 1949 ATLAS POWDER CO Electric Explosion Initiator |
| 1940 HANDFORTH Electric Blasting Initiator Art |
| 1941 JOHNSON Protective Electric Blasting Initiator |
| 1956 ZEBREE Electric Initiator Ignition Mixture |
| 1941 HARDT Electric Blasting Initiator Patent |
| 1953 ZEBREE DAVID Electric Initiator Patent |
| 1962 TEXACO EXPERIMENT INC Electric Initiator |
| 1962 ATLAS CHEM IND Delay Electric Explosion Initiator |
| 1962 BALL Arc Resistant Electric Initiator Art |
| 1949 HERCULES POWDER LTD Delay Electric Initiator |
| 1957 HORNE Static Resistance Electric Initiator |
| 1961 DU PONT Electric Initiator Patent Print Art |
| 1940 JOHNSON Electric Blasting Initiator Patent |
| 1949 HANLEY Delay Electric Initiator Patent |
| 1961 RAMER Static Resistant Electric Initiator |
| 1946 ATLAS POWDER CO Electric Explosion Initiator |
| 1962 ATLAS CHEM IND Arc Resistant Electric Initiator |
| 1953 ATLAS POWDER CO Electric Explosion Initiator |
| 1967 SCHNETTLER Electric Initiator Structure Art |
| 1965 TEXACO EXPERIMENT INC Electric Initiator |
| 1967 CICCONE Piezo Electric Detonation Initiator System |
| 1946 HUYETT Electric Explosion Initiator Patent |
| 1942 DU PONT Electric Blasting Initiator Patent |
| 1959 BAYARD Electric Blasting Initiator Patent |
| 1959 SYLVANIA ELECTRIC PROD Initiator Primer Art |
| 1953 MCFARLAND Electric Explosion Initiator Art |
| 1947 HUYETT Electric Explosion Initiator Patent |
| 1949 ROLLAND Electric Explosion Initiator Patent |