GB 123

GB 123 refers to Class 123 within the British Abridgment of patent specifications: "Steam Generators. Excepting Furnaces, for which see Abridgment Class 51, Furnaces &c."

There is at least one explicitly aeronautical subclass within GB 122.

• GB 123 aero steam generators (see for 1889–1992, listing Patent GB-1889-10359, Patent GB-1889-16883, and Patent GB-1891-19228, all of which were classified simultaneously as GB 122 aero steam engines, as well as Patent GB-1891-21885, which was not.

This wiki has 0 patents in category "GB 123".

Enclosing categories	British patent classifications
Subcategories	GB 123 aero steam generators
Keywords	Engine, Steam, Propulsion
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