I brevetti nella storia: la Pera

[1927]

Pear corer

[1940]

Pear tree

[1951]

Pear peeling apparatus

 [1958]

Molded pulp pear tray

[2000]

Japanese Pear tree named "Osa Gold"

Brevetti che segnano la storia evolutiva della Forchetta

[1888]

Combined knife and fork

[1883]

Design for a fork

[1912]

Oyster-fork

[1955]

Spaghetti fork

[2003]

Universal fork