with driven or windmilling propellers

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Patents Grantslast 30 patents

Information Patent Grant
2610005
- Patent number 2,610,005
- Issue date Sep 9, 1952
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
2300268
- Patent number 2,300,268
- Issue date Oct 27, 1942
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
2216080
- Patent number 2,216,080
- Issue date Sep 24, 1940
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
2174946
- Patent number 2,174,946
- Issue date Oct 3, 1939
- B60 - VEHICLES IN GENERAL
Information Patent Grant
1822179
- Patent number 1,822,179
- Issue date Sep 8, 1931
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
1770788
- Patent number 1,770,788
- Issue date Jul 15, 1930
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
1746320
- Patent number 1,746,320
- Issue date Feb 11, 1930
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
1668052
- Patent number 1,668,052
- Issue date May 1, 1928
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
1388642
- Patent number 1,388,642
- Issue date Aug 23, 1921
- B64 - AIRCRAFT AVIATION COSMONAUTICS