CH78960A
(en )
1919-02-17
Method and device for measuring the performance of piston engines
CH80132A
(en )
1919-06-16
Method to enlarge the compression space of an explosion engine
FR505555A
(en )
1920-08-02
Aviation engine improvements
CH81671A
(en )
1919-11-17
Two-stroke engine
FR527177A
(en )
1921-10-21
Piston and piston ring
FR21196E
(en )
1920-07-01
Improvement of airplanes bearing surfaces
CH83517A
(en )
1919-12-16
Method and device for the production of photographs of terrain from aircraft
AT169484B
(en )
1951-11-26
Method and device for increasing the performance of internal combustion engines
FR497008A
(en )
1919-11-22
Valve refinements
CH81362A
(en )
1919-06-02
Device to simplify the operation of motor fire engines
CH225642A
(en )
1943-02-15
Method and device for generating cold by means of piston internal combustion engines which are used for other purposes.
FI7845A
(en )
1919-12-12
Knowing for the purpose of testing and testing
FR547172A
(en )
1922-12-02
Improvement of the pistons of internal combustion engines
FR535766A
(en )
1922-04-21
Turbo-combustion engine
ES70063A1
(en )
1919-07-16
Procedure and apparatus for regulating the quantity of air for the operation of combustion engines for airplanes and similar devices.
FR22006E
(en )
1921-04-21
Aircraft capable of flying without an engine
CH82663A
(en )
1919-10-16
Inlet control on piston engines
FI7225A
(en )
1919-02-15
Combustion engine
CH75695A
(en )
1917-09-01
Device on vehicle engines to facilitate starting
CH77154A
(en )
1918-03-01
Device on vehicle engines to facilitate starting
FR497468A
(en )
1919-12-06
Air navigation instrument
DK32874C
(en )
1924-02-18
Devices of reusable internal combustion engines.
FR522213A
(en )
1921-07-28
Combustion turbine
FR506152A
(en )
1920-08-16
Combustion turbine
FR509024A
(en )
1920-10-29
Combustion turbine