Unicrumb
Unicrumb Unicrumb
  • 03-03-2017
  • History
contestada

In 1908, who invented and patented a rotary drill that could break rock?

Respuesta :

ddaeseleer15
ddaeseleer15 ddaeseleer15
  • 03-03-2017
It was Howard R. Hughes
Answer Link

Otras preguntas

The sum of two consecutive negative integers is -143. What is the number closest to zero?
D o all the triangle's sides equal 180°
I will go to the mall if and only if I get paid today. Determine the conditions that will make the biconditional true
What is 41 divided by 7? Put the remainder, too.
A series of connections of food chains in an ecosystem is called a _____ . population food web community
The Apology of Socrates What are the ultimate consequences of his responses to the Athenian court?
Part of making comparisons involves contrasting unlike characteristics. a. True b. False
Egeus wants his daughter to A. marry Demetrius. B. enter a convent. C. be executed. D. marry Lysander.
Wind tends to move from _____ to _____ pressure areas. (low, high) (high, high) (low, low) (high, low)
-2x-6+(x/4)-3+90=180. Solve for x and show work.