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
發表於2024-09-09
Rare As Hens Teeth Heath Reading Series 2024 pdf epub mobi 電子書 下載
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Rare As Hens Teeth Heath Reading Series 2024 pdf epub mobi 電子書 下載