GB 4 propel & steer

From Inventing aviation
Jump to navigation Jump to search

"Propelling & steering arrangements" in British subject-matter index.

One of the original top-level categories; subdivided in 1901 and fully split (into propulsion and steering) in 1905.

In the 1909–1915 Abridgments propulsion and steering were subdivided into many layers related to power source and type of mechanism. See the subject matter classification of that volume, and Patent GB-1909-13418 for an example.

Enclosing categories GB 4
Keywords Propulsion, Navigation, Piloting, Steering
Start year 1884
End year 1904

This wiki has 74 patents in category "GB 4 propel & steer".

Patents in category GB 4 propel & steer