US1853727A
|
|
Wrist pin
|
US1813045A
|
|
Engine frame
|
US1799160A
|
|
Samson post
|
US1813044A
|
|
Mounting for calf wheels or the like
|
US1784003A
|
|
Walking-beam stirrup
|
US1777432A
|
|
Wrist-pin puller
|
US1863701A
|
|
Pneumatic pumping apparatus
|
US1724858A
|
|
Pneumatic pumping apparatus
|
US1755395A
|
|
Transmission power take-off
|
US1724857A
|
|
Pneumatic pumping apparatus
|
US1854372A
|
|
Jack post clamp
|
US1724856A
|
|
Pneumatic pumping apparatus
|
US1724855A
|
|
Pneumatic pumping apparatus
|
US1724854A
|
|
Pneumatic pumping apparatus
|
US1724853A
|
|
Pneumatic apparatus for pumping wells
|
US1578387A
|
|
Pumping jack
|
CA297141A
|
|
Pneumatic pumping apparatus
|