Rare As Hens Teeth Heath Reading Series_图书大全
Rare As Hens Teeth Heath Reading Series
ISBN: 9780669114799
定价: 811.00
内容简介
In one day, three hundred inventors take their inventions
to the U,S. Patent Office; 180 of them are granted a patent.
Fewer than three of them ever make any money from
their invention.
from IN ONE DAY by Tom Parker
