INTERESTING FACT
WD-40's formula is a trade secret, and has not changed. To avoid disclosing its composition, the product was not patented in 1953, and the window of opportunity for patenting it has long since closed. Amazing WTF Facts
WD-40's formula
WD-40's formula is a trade secret, and has not changed. To avoid disclosing its composition, the product was not patented in 1953, and the window of opportunity for patenting it has long since closed. Amazing WTF Facts
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