41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
187036
15686
1
Public Timelines
FAQ

jan 1, 1958 - 9% solar efficiency

Description:

Hoffman Electronics.

Added to timeline:

30 Oct 2017
1
0
841

Date:

jan 1, 1958
Now
~ 68 years ago