20 Observations About Everyday Things You Probably Don’t Know Byapril October 5, 2015October 5, 2015 Entertainment 14. Nobody knows who owns the patent for fire hydrants because the patent office in which the records were being held burned down. Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
