What was Isaac Singer's occupation?
inventor
What product did he improve upon?
sewing machines
And who was Elias Howe?
an inventor
When was his birthdate?
July 9, 1819
What do these two men have in common regarding their nationality?
Both are from America
Was sewing a new or old practice?
old
For how long has it been happening?
thousands of years
And how did they do it?
used bones
What was different about what these inventors were creating?
tried to make a sewing machine
Who ended up in a legal battle?
Singer and Howe
What was the reason?
Singer used the same method to create a lockstitch that Howe had already patented