Similar
Compagnie Générale des Gaz Liquéfiés, brevetto di rubinetto per gas, Parigi 1961 - san dl SAN IMG-00002956
Esq eletr transm ondas color
Seeing by electricity / W.A. Carey, sc.
Patent drawing - CipherTypewriter7 - . Public domain image
Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to (14571485067)
Maaien van het gras in de perken
Patent drawing - Pawl actuated cable lift Public domain image
Related
Patent Drawing of Engine - Patent 1,012,087 - . Public domain image
Patent Drawing of Engine - Twistgrip Patent US765138 - Public domain portrait drawing Public domain image
Patent drawing - Pat196747 - . Public domain image
Patent drawing - US patent 1897982A - . Public domain image
Patent Drawing of Engine - 001 Sundback zipper 1917 patent (cropped) Public domain image
Patent drawing - Patent1904-RasierhobelKingC-Gilett Public domain image
Patent drawing - Public Domain Images - Learjet US4050651A patent Public domain image
Patent drawing - Rocket propelled missile patent drawing 01 Public domain image
Patent Drawing of Engine - US4013048 fig1-Color - Public domain portrait drawing Public domain image
Patent Drawing of Engine - 001 Sundback zipper 1917 patent Public domain image
Резюме
1917 patent of the "separable fastener" (zipper) by Gideon Sundbäck.
Public domain photograph related to motor parts, engines, free to use, no copyright restrictions image - Picryl description
Тэги
Дата
20/03/1917
Источник
USPTO
Ссылка
Информация о правах
public domain