30
/es/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
June 15, 2024
858475
71089
2
Public Timelines
FAQ
Menu
Public Timelines
FAQ
Public Timelines
FAQ
For education
For educational institutions
For teachers
For students
Open cabinet
For educational institutions
For teachers
For students
Open cabinet
Crear
Close
Create a timeline
Public timelines
Library
FAQ
20 nov 1908 año - Howard hughes drill bit
Descripción:
Howard Hughes files the basic patents for his rotary drill. Breaking through rock would never be easier.
Añadido al timeline:
The Industrial Timeline
By
Cameron Shields
8 mar 2018
0
0
275
fecha:
20 nov 1908 año
Ahora mismo
~ 115 years ago
About & Feedback
Acuerdo
Privacidad
Biblioteca
2024
©
Time.Graphics
Support 24/7
Cabinet
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
Excellent (Trustpilot Reviews)
Based on 115+ reviews