Film and TV
What did hyman lipman invent?
On March 30th, 1858 Hyman Lipman patented the installation of a rubber eraser at the end of a pencil. The eraser in this design is encased in the wood pencil allowing you to sharpen both ends whenever you had a dull point or not enough eraser.
{{ relativeTimeResolver(1568140265356) }}
LIVE
Points
19
Rating
Similar Questions
Film and TV
•
2
Answers
Film and TV
•
1
Answer
Film and TV
•
1
Answer
Film and TV
•
1
Answer
Film and TV
•
2
Answers