Anti-Theft Auto Call Door Knob Invented By Filipino Grade 9 Science Student
Grade 9 Science Student-Invented an Anti-Theft Security Device Called “Auto Call Door Knob” Anti-Theft Auto Call door knob was invented by a Filipino grade 9 science student who won the National Science Fair Competition. On Wednesday (October 05, 2016), it is reported that a Filipino Grade 9 science student in Baguio City high school invented … Read more