SE100780C1
(cs )
1940-01-01
GB319963A
(en )
1929-10-03
Improvements in rotary propellers
GB825303A
(en )
1959-12-16
Improvements in or relating to variable pitch propellers
GB536865A
(en )
1941-05-29
Improvements in or relating to aircraft
GB352833A
(en )
1931-07-16
Improvements in or relating to screw propellers
GB640852A
(en )
1950-07-26
Improvements relating to variable pitch propellers
GB362218A
(en )
1931-12-03
Improvements in paddle-wheel propellers
FR660012A
(fr )
1929-07-05
Mode de réglage des aubes tournantes des roues de turbines hydrauliques, pompes, hélices et autres machines rotatives
SE48254C1
(cs )
1920-01-01
GB299387A
(en )
1929-01-31
Improvements in air propellers
GB223296A
(en )
1924-10-16
Improvements in propellers for aerial or marine propulsion
US1289343A
(en )
1918-12-31
Aeroplane-speed accelerator.
GB387899A
(en )
1933-02-16
A device for extracting power from flowing media
GB316337A
(en )
1929-07-23
Rotary propeller
DK59359C
(da )
1941-12-29
Sejl, navnlig til Fartøjer og Propel-, Vindmølle- og Bærevinger.
FR655577A
(fr )
1929-04-20
Paliers d'hélice, notamment pour aéronefs
GB356285A
(en )
1931-09-10
A wheel having feathering vanes adapted for use in air or water as a motor, pump, or propeller
Johnson
1938
NEGRO FOLK EDUCATION ASSOCIATES. The Bronze Booklets.(Book Review)
GB500163A
(en )
1939-02-03
Improvements in boat propelling mechanism
GB614621A
(en )
1948-12-17
Improvements in and relating to rotative aerofoils with propulsive ducts
DK60808C
(da )
1943-04-12
Sejl, navnlig til Fartøjer og Propel-, Vindmølle- og Bærevinger.
GB460332A
(en )
1937-01-26
Improvements in air screw propellers
GB253982A
(en )
1926-07-01
Improvements in or connected with paddle wheels
GB388199A
(en )
1933-02-23
Improvements in or relating to the propulsion of ships
SE100366C1
(cs )
1940-01-01