Keystone LB-6
නිෂ්පාදිත රට
එක්සත් ජනපදය
එක්සත් ජනපදය
නිෂ්පාදකයාKeystone Aircraft
තවම පරිවර්තනය කර නැත — ඉංග්රීසියෙන් පෙන්වයි.
The Keystone LB-6 and LB-7 were 1920s American light bombers, built by the Keystone Aircraft company for the United States Army Air Corps, called Panther by the company, but adoption of the name was rejected by the U.S. Army.
