The plural for apparatus can be either apparatuses or remain as apparatus.
I built that apparatus.
A telescope is an apparatus for viewing stars.
Gravesand apparatus is used to determine weight of body using parallelogram law of vectors.
Breathing Apparatus with Self contained Compressed Air
methods of use of clevenger apparatus
three fosters control the work of clevenger: boiling temperature of the distillator density and hydrophobic ability.
Craig Clevenger was born in 1964.
Vern Clevenger was born in 1955.
Cliff Clevenger was born in 1885.
Cliff Clevenger died in 1960.
Dale Clevenger was born in 1940.
Carey Clevenger is 5' 9".
Kelli Clevenger is 5' 6".
Tex Clevenger was born on 1932-07-09.
Raymond F. Clevenger was born in 1926.
Helen Clevenger died on 1936-07-16.