|
US2208334A
|
|
Horizontally reciprocating pump
|
|
US2137552A
|
|
Multiple crank driving mechanism
|
|
US2137551A
|
|
Motor
|
|
US1972228A
|
|
Indicator mechanism for internal combustion engines
|
|
GB390468A
|
|
Improvements in or relating to pipe clamps
|
|
US1952605A
|
|
Self-locking pipe clamp for field welding
|
|
US1943561A
|
|
Blade for rotary pumps
|
|
US1930294A
|
|
Pumping system for grease
|
|
US1942367A
|
|
Hand pump for greases, etc.
|
|
US1930293A
|
|
Pump
|
|
US1902345A
|
|
Fluid pressure pump
|
|
US1472028A
|
|
Engine
|
