Jump to content
Main menu
Main menu
move to sidebar
hide
Navigation
Main Page
Community portal
Central discussion
Recent changes
Subject index
Authors
Random work
Random author
Random transcription
Help
Display Options
Search
Search
Appearance
Donate
Create account
Log in
Personal tools
Donate
Create account
Log in
Pages for logged out editors
learn more
Contributions
Talk
United States patent 4378X
Add languages
Add links
Page
Discussion
English
Read
Edit
View history
Tools
Tools
move to sidebar
hide
Actions
Read
Edit
View history
General
What links here
Related changes
Special pages
Permanent link
Page information
Cite this page
Get shortened URL
Download QR code
Print/export
Printable version
Download EPUB
Download MOBI
Download PDF
Other formats
In other projects
Wikidata item
Appearance
move to sidebar
hide
Download
From Wikisource
←
U.S. Patent 4378X
→
related portals
:
Patents
sister projects
:
Wikidata item
136324
U.S. Patent 4378X
Categories
:
25%
United States patents
Hidden category:
Undated works
