20. juuni 1957

20. juuni 1957: 3 companies

PATHFINDER AIR SURVEYS LIMITED Registrikood: 056277-7 Juriidiline aadress: 3363 CARLING AVE, OTTAWA 14, ONTARIO, CANADA, K2H7V6

B & P HALL BROS. LIMITED Registrikood: 045051-1 Juriidiline aadress: 274 PARK STREET, BROWNSBURG, QUEBEC, CANADA, J0V1A0

J. G. KNOWLTON COMPANY LIMITED Registrikood: 048329-0 Juriidiline aadress: 190 COLONNADE ROAD SOUTH, NEPEAN, ONTARIO, CANADA, K2E7J5