AT 46a

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This will have to be fleshed out later. We found it via Auguste Rateau's Patent AT-1920-92453, which deals with internal combustion engines, their regulation, their increase in power, and, to an extent, their applicability to aircraft.

Enclosing categories Austrian patent classifications
Subcategories AT 46b
Keywords
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This wiki has 2 patents in category "AT 46a".

Patents in category AT 46a