US1598091A
|
|
Impacting tool
|
US1598090A
|
|
Impacting tool
|
US1598088A
|
|
Mechanical movement
|
US1577976A
|
|
Power-driven tool-operating device
|
DE390538C
|
|
Electrically powered impact tool
|
US1298966A
|
|
Electrically-operated tool.
|
US1082880A
|
|
Mechanical hammer.
|
US1024027A
|
|
Electromechanical device.
|
US1024026A
|
|
Electromechanical device.
|
US1024025A
|
|
Percussion device.
|
US1062799A
|
|
Electromechanical device.
|
US938709A
|
|
Electromechanical device.
|
CA120598A
|
|
Electro-mechanical device
|
US973216A
|
|
Electromechanical device.
|
US938708A
|
|
Electromechanical device.
|
CA218476A
|
|
Electrically operated tool
|
DE467720C
|
|
Impact tool
|