Maraval
Trinidad and Tobago
5
2016-07-21
Mark E. Lee Lum from Maraval, TT has applied for patents for these inventions. The list has both pending applications and granted patents:
Ventilated building block and related mold components
#2 | 2010-09-30VENTILATED BUILDING BLOCK WITH DRAIN FEATURE
#3 | 2010-09-09Mold for ventilated building block
#4 | 2010-09-09VENTILATED BUILDING BLOCK
#5 | 2010-05-20Ventilated building block
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