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IR. WILLEM LANGELAAN OAA 
812 – 1400 Dixie Road
Mississauga ON
Canada L5E 3E1
 
 
Phone
1 647 236 1286
 
 
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ir. Willem Langelaan OAA
 
 
Software
Quick 'n Easy Web Builder 
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MASTERLIBRARY 
high level 2D/3D parametric objects for ArchiCAD