| 1959 BRYAN PAUL Blasting Initiator Patent Print |
| 1959 CARTER Method Testing Electric Blasting Caps |
| 1959 WITT BICKEL Blasting Machine Patent Print |
| 1959 ICI LTD Delay Blasting Devices Patent Print |
| 1959 OLIN MATHIESON Manufacture Electric Blasting Caps |
| 1959 O'NEILL Electric Blasting Caps Patent Print |
| 1959 NAT MINE SERVICE CO Blasting Plug Patent |
| 1959 AMERICAN CYANAMID CO Electric Blasting Initiator |
| 1959 EARLE SCHULZ Blasting Initiator Patent |
| 1959 DU PONT Blasting Initiator Patent Print Art |
| 1959 WOLF Blasting Cap Electric Firing System |
| 1959 ICI LTD Reutilisable Blasting Assemblies |
| 1959 BREETZ GERNERT Blasting Assembly Patent |
| 1959 HANS Capacitor Blasting Detonating Machine |
| 1959 HOUSEHOLDER LESLIE Blasting Plug Patent |
| 1959 ASHBROOKE SMITH Blasting Device Patent |
| 1959 OLIN MATHIESON Electric Blasting Caps Art |
| 1959 ICI LTD Blasting Device Patent Print Art |
| 1959 KOLBE FRANK Method Of Blasting Patent Print |
| 1959 HENRY DAVIDSON Blasting Device Patent Print |
| 1959 DU PONT Blasting Machine Patent Print Art |
| 1959 DU PONT Blasting Assembly Patent Print Art |
| 1959 ROBERT Reutilisable Blasting Assemblies Art |
| 1959 BAYARD Electric Blasting Initiator Patent |
| 1959 DU PONT Method Testing Electric Blasting Caps |
| 1959 MAUMEE COLLIERIES CO Method Blasting Art |
| 1959 WILLIAM Delay Blasting Devices Patent Print |
| 1959 WELSH JR Blasting Assembly Patent Print Art |
| 1959 RUSSELL Blasting Initiator Patent Print Art |
| 1959 O'NEILL Manufacture Electric Blasting Caps |