Now you Know

Invention : condom, latex
Year : c. 1930
Inventor : -
Country : -.

Invention : contact lenses
Year : 1887
Inventor : adolf fick
Country : germany.

Invention : contraceptives, oral
Year : early 1950s
Inventor : gregory pincus, john rock, min chueh chang
Country : us.

Invention : corn, hybrid
Year : 1917
Inventor : donald f. jones
Country : us.

Invention : correction fluid, white
Year : 1951
Inventor : bette nesmith
Country : us.

Invention : cotton gin
Year : 1793
Inventor : eli whitney
Country : us.

Invention : coupon, grocery
Year : 1894
Inventor : asa candler
Country : us.

Invention : crayons, children's wax
Year : 1903
Inventor : edwin binney, c. harold smith
Country : us.

Invention : cream separator (dairy processing)
Year : 1878
Inventor : carl gustaf patrik de laval
Country : sweden.

Invention : credit card
Year : 1950
Inventor : frank mcnamara, ralph schneider (diners' club)
Country : us.

Invention : crossword puzzles
Year : 1913
Inventor : arthur wynne
Country : us.

Invention : ddt
Year : 1874
Inventor : othmar zeidler
Country : germany.

Invention : defibrillator
Year : 1952
Inventor : paul m. zoll
Country : us.

Invention : dentures
Year : c. 700 bc
Inventor : etruscans
Country : italy.

Invention : detector, metal
Year : late 1920s
Inventor : gerhard fisher
Country : germany/us.

Invention : detector, home smoke
Year : 1969
Inventor : randolph smith, kenneth house
Country : us.

Invention : diamond, artificial
Year : 1955
Inventor : general electric co.
Country : us.

Invention : diapers, disposable
Year : 1950
Inventor : marion donovan
Country : us.

Invention : digital videodisc (dvd)
Year : 1995
Inventor : consortium of international electronics companies
Country : japan, us, the netherlands.

Invention : dishwasher
Year : 1886
Inventor : josephine cochrane
Country : us.

Book
Book : untold story
Author : gen.b.m.kaul. .. More >>