Aman named alexander graham bell received a patent for his telephone invention in 1876. today, many americans carry a cell phone around with them. define patent law and describe how patents encourage competition.

wait so (ima delete the answer if i get , so i dont steal points. i apparently cant comment) could someone me with this one? the same photo.

sections b and e in this image both represent (3 points)

select one:

a. district courts

b. courts of appeal

c. trial courts

d. supreme courts