The earliest extant example of a mechanical pencil was found aboard the ... The
first patent for a refillable pencil with lead-propelling ...
The original inventor of the mechanical pencil is up for debate. There are
documented references to a lead-holding pencil as early as 1565, and the
Aug 16, 2013 ... Today: a guest blog post by Alice Jenkins about the origins of the mechanical
pencil. You might have already seen some of her guest blog ...
A Brief History of the Mechanical Pencil. The very first pencils were in some ways
closer to mechanical pencils than to what we think of now as 'ordinary' ...
The mechanical pencil is well known today throughout the world, largely thanks
to Sharp's founder Tokuji Hayakawa. By developing an original lead-thrusting ...
Oct 26, 2012 ... Joey's answer is partially correct. The first patent for the mechanical pencil was
granted in 1822 to the silversmith Sampson Mordan and ...
The concept of the pencil really hasn't changed since the first time early humans
dragged the charred end of a stick across a cave wall and found that bits of ...
 Munroe, of Concord, MA, exhibited lead pencils at of the Massachusetts
Charitable Mechanical Association in and around Boston in 1837, 1839, and
The History of the Mechanical Pencil. While mechanical pencils can often be
taken for granted, their invention and development spans decades. Also known