General Alphabet of Cameroon Languages
The General Alphabet of Cameroon Languages is an orthographic system created in the late 1970s for all Cameroonian languages. Consonant and vowel letters are not to contain diacritics, though ⟨ẅ⟩ is a temporary exception. The alphabet is not used sufficiently for the one unique letter, a bilabial trill, to have been added to Unicode; in any case, that letter has now been replaced.
Maurice Tadadjeu and Etienne Sadembouo were central to this effort.