June 20, 1957

June 20, 1957: 3 companies

PATHFINDER AIR SURVEYS LIMITED Registration code: 056277-7 Legal address: 3363 CARLING AVE, OTTAWA 14, ONTARIO, CANADA, K2H7V6

B & P HALL BROS. LIMITED Registration code: 045051-1 Legal address: 274 PARK STREET, BROWNSBURG, QUEBEC, CANADA, J0V1A0

J. G. KNOWLTON COMPANY LIMITED Registration code: 048329-0 Legal address: 190 COLONNADE ROAD SOUTH, NEPEAN, ONTARIO, CANADA, K2E7J5