FR931296A
(en )
1948-02-18
Improvements to rotary wing aircraft
FR935352A
(en )
1948-06-17
Improvements to rotary wings for aircraft
IE17749L
(en )
1946-11-09
Rotary wing aircraft
IE17765L
(en )
1947-10-05
Rotary wing aircraft
FR948570A
(en )
1949-08-04
Improvements to rotary wing aircraft
CA445448A
(en )
1947-12-09
Rotary wing aircraft
AU131862B2
(en )
1946-11-28
Improvements in or relating to rotary wing aircraft
AU137362B2
(en )
1946-05-24
Improvements in or relating to rotary wing aircraft
AU133429B2
(en )
1946-10-10
Improvements in or relating to rotary wing aircraft
AU132014B2
(en )
1946-10-10
Improvements in or relating to rotary wing aircraft
AU128946B2
(en )
1946-10-10
Improvements in or relating to rotary wing aircraft
CA14486S
(en )
1946-02-22
Helicopter aeroplane toy
AU140569B2
(en )
1947-09-11
Improvements in rotary wing aircraft
CA436016A
(en )
1946-07-23
Aircraft structure
CA438567A
(en )
1946-12-17
Rotative-winged aircraft
FR938047A
(en )
1948-09-02
Improvements to rotary wing aircraft
CA434675A
(en )
1946-05-14
Aeroplane flight device
CA437088A
(en )
1946-09-24
Airplane
AU483146A
(en )
1946-11-28
Improvements in or relating to rotary wing aircraft
AU482946A
(en )
1946-10-10
Improvements in or relating to rotary wing aircraft
AU482846A
(en )
1946-10-10
Improvements in or relating to rotary wing aircraft
AU482746A
(en )
1946-10-10
Improvements in or relating to rotary wing aircraft
AU375546A
(en )
1946-05-24
Improvements in or relating to rotary wing aircraft
AU130833B2
(en )
1946-07-12
Improvements relating to aeroplane wings
AU132398B2
(en )
1946-10-03
Improvements in or relating to damper for rotary wing aircraft