Jump to content

File:Hartley-US-Pat 1,356,763.png

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (1,024 × 768 pixels, file size: 10 KB, MIME type: image/png)

Summary

Description
English: Drawing from the US Patent 1,356,763, Inventor Ralph V.L. Harley
Deutsch: Zeichnung aus dem US Patent 1,356,763, Erfinder Ralph V.L. Harley
Date
Source US-Pat_1,356,763
Author rainglaz

Licensing

Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

Captions

2. Capacitor 3. and 4. Inductors 5. "[[Audion]]" triode vacuum tube 6. Heated Cathode 7. Plate(Anode) 8. Control Grid 9 and 10. Polarizing Batteries 11. Cathode Heater Battery

Items portrayed in this file

depicts

26 October 1920Gregorian

10,095 byte

768 pixel

1,024 pixel

image/png

942e59930de73317a4d244a117bfc9747e86bed6

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current14:21, 9 December 2008Thumbnail for version as of 14:21, 9 December 20081,024 × 768 (10 KB)Rainglasz{{Information |Description={{en|1=Drawing from the US Patent 1,356,763, Inventor Ralph V.L. Harley}} {{de|1=Zeichnung aus dem US Patent 1,356,763, Erfinder Ralph V.L. Harley}} |Source=US-Pat_1,356,763 |Author=rainglaz |Date=26.10.1920 |Permission= |other_

Global file usage

The following other wikis use this file: