Schwartz, Jeffery, Schwaab, Mack, Blumenthal & Koch
Variable air valve carburetor
 A carburetor with a circular air valve, in which the fuel metering needle is connected to a bracket on the downstream face of the air valve. 
Nissan Motor Company, Limited
F Y
F02M Y10S
inventional additional
Masaaki Katsushi Tadaki Mitsumasa
Saito Yoshikawa Ota Inoue