He possessed therefore the best qualifications for evolving such technically innovative conceptions for which Eiffel and his firm were renowned .
Koechlin was an engineer of outstanding ingenuity and well versed in the structural techniques of his time .
Koechlin possessed therefore the best qualifications for evolving such technically innovative conceptions for which Eiffel and Koechlin 's firm were renowned .
Koechlin was an engineer of outstanding ingenuity and well versed in the structural techniques of his time .