Who had the first patent for a refillable pencil with a lead-propelling mechanism?
Correct answer: Sampson Mordan & John Isaac Hawkins
ThrillingRevival6
Hunt Nelson44, bottles with ammonia in them for people who have fainted.
SQinfoNUTS
Hunt Nelson44, Perhaps it is what we come to know as smelling salts.
Player #1137636
I wonder what they'd be making now if it wasn't for human warfare.
తను
don't know
Jayden
all these answers are easy and simple
Sannah
what are "smelling bottles"?