Kirkwood, Missouri
United States
2
2006-11-02
Robert E. Sparks from Kirkwood, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Products for the manufacture of molds and cores used in metal casting and a method for their manufacture and recycle from crushed rock
#2 | 2005-02-17Products for the manufacture of molds and cores used in metal casting and a method for their manufacture and recycle from crushed rock
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