login
Questions
Unanswered
Tags
Users
Ask a Question
My Feed
G2G Help
Ask a question:
Categories
All categories
The Tree House
(40.0k)
Appreciation
(16.9k)
Genealogy Help
(91.9k)
Photos
(4.9k)
Policy and Style
(14.2k)
Requests for Project Volunteers
(3.1k)
WikiTree Help
(13.3k)
WikiTree Tech
(15.7k)
Recent questions tagged invention
Recent questions tagged invention
For the main WikiTree index, see
INVENTION genealogy
.
+12
votes
2
answers
121
views
Shared Photo: Item 2 George Washington Shotwell patent of spring mattress
asked
Mar 30, 2016
in
The Tree House
by
Summer Orman
G2G6 Mach 8
(
87.8k
points)
shotwell
invention
patent
photos
To see more, click for the
full list of questions
or
popular tags
.
WikiTree
~
About
~
Help
~
Search
~
Surname
:
...