Invention Patents

Invention Patents


Total 45 Patents of invention and 24 Registrations of Design, 5 Utility models
Grease-trap-M-43-certificate-of-patent

Manhole having oil-water separation function (D / E / F size)

Grease-trap-E-F-(XS,XS-2)-certificate-of-patent

Manhole having a sight glass (E/ F size)

Case Study