|
US5662175A
|
|
Sea water pile hammer
|
|
CA2101301A1
|
|
Furnace shell cooling system
|
|
US4819740A
|
|
Vibratory hammer/extractor
|
|
US4295752A
|
|
Retaining assembly
|
|
US4015821A
|
|
Cable tensioning assembly
|
|
US3938427A
|
|
Percussion hammer
|
|
US3815474A
|
|
Pile driving hammer
|
|
US3800888A
|
|
Cushion pot anvil with mechanical and molded joint
|
|
US3782483A
|
|
Percussion hammer
|
|
US3704651A
|
|
Free piston power source
|
|
US3645342A
|
|
Percussion hammer
|
|
US3566977A
|
|
Percussion hammer
|
|
US3547207A
|
|
Percussion hammer
|
|
GB1244635A
|
|
A percussion hammer
|
|
US3454112A
|
|
Pile driving hammer
|
|
US3455208A
|
|
Percussion hammer
|
|
US3444937A
|
|
Boring apparatus with valveless impactor
|
|
FR1533275A
|
|
Automatic hammer, in particular bell for driving piles or operations
|
|
US3357315A
|
|
Power hammer
|
|
US3329216A
|
|
Mandrel for driving pile shells
|
