CH138403A
(en )
1930-02-28
Injection engine.
FR647844A
(en )
1928-12-01
Piston improvements
FR662187A
(en )
1929-08-03
Variable stroke piston engine
DK42142C
(en )
1930-05-05
Movement device for engines with reciprocating drive pistons.
FR681686A
(en )
1930-05-17
Piston for combustion engine
DK40085C
(en )
1929-04-29
Cooling device for reciprocating pistons.
DK41146C
(en )
1929-11-25
Drive device for internal combustion engines with reciprocating pistons.
FR651046A
(en )
1929-02-13
Piston improvements
DK41909C
(en )
1930-03-24
Control device for internal combustion engines with pistons.
DK38418C
(en )
1928-02-06
Drive housing for multi-cylinder piston pumps.
DK41916C
(en )
1930-03-24
Frame stroke, driven by an internal combustion engine.
ES109639A1
(en )
1928-11-01
An injection device for combustion engines.
DK41979C
(en )
1930-04-07
Control device for control pistons for internal combustion engines.
FR666730A
(en )
1929-10-04
Piston improvement
AT121473B
(en )
1931-02-25
Piston.
AT111054B
(en )
1928-10-25
Piston.
FR675121A
(en )
1930-02-06
Engine piston system
ES108770A1
(en )
1928-09-16
Improvements in reciprocating poly-cylinder engines.
ES117276A1
(en )
1930-04-01
Plunger for oil engines.
ES88893A1
(en )
1924-05-01
Improvements in pistons for engines.
ES100362A1
(en )
1927-01-01
Improvements in pistons for combustion engines.
DK39959C
(en )
1929-03-25
Device with double-acting piston pumps.
ES130017A1
(en )
1933-05-01
Device for reciprocating pumps.
ES107413A1
(en )
1928-06-16
Improvements in the devices for the cooling of reciprocating pistons.
FR639863A
(en )
1928-07-02
Piston improvements