|
GB262716A
|
|
Improvements relating to pistons
|
|
GB240188A
|
|
Improvements in cinematographic apparatus adapted for the continuous travel of the film
|
|
GB218493A
|
|
Improvements relating to rotary internal combustion motors
|
|
GB217397A
|
|
Improvements relating to internal combustion engines of the annular cylinder type
|
|
DE413312C
|
|
Four-stroke engine with pistons rotating in a ring cylinder
|
|
GB197009A
|
|
Improvements relating to rotary internal combustion engines
|
|
GB197010A
|
|
Improvements relating to rotary internal combustion engines
|
|
GB193645A
|
|
Improvements relating to speed changing gear
|
