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GB659530A
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Work guide for rolling mills
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GB619699A
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Method and apparatus for heat treating railroad rails
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DE733779C
|
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Device for hardening the tab connection surfaces of railroad tracks
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GB492602A
|
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Improved cartridge containing liquid air or liquid oxygen
|
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GB481207A
|
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Improvements relating to freeing metallic pieces from their surface film of oxide
|
|
GB456817A
|
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Improved device for securing railway rails
|
|
GB461178A
|
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Improved device for securing railway rails
|
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DE709885C
|
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Process for the manufacture of hardened railroad tracks with increased breaking strength
|
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GB424460A
|
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Improvements in or relating to blasting charges
|
|
GB424733A
|
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Explosive and cartridge containing liquid air or liquid oxygen
|
|
GB422255A
|
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Method for preventing the ignition of fire-damp and coal dust during mine blasting
|
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US2043565A
|
|
Blasting cartridge
|
|
GB409201A
|
|
Improvements in blasting cartridges containing solid carbon dioxide
|
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DE619249C
|
|
Method for hardening railway tracks
|
|
DE645336C
|
|
Explosive cartridge
|
|
DE601466C
|
|
Device for promoting elongated, non-rollable goods such. B. Track rails
|
|
DE679258C
|
|
System for hardening railroad tracks
|
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US1840479A
|
|
Blasting cartridge
|
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GB362392A
|
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Improved support for rail joint
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GB362390A
|
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Rail supporting and clipping arrangement with special sleeper
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