File:US1047839-Figure 1.png

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Description
English: Revolving-cylinder internal-combustion engine

A cylinders
B drum-shapedcrank-chamber
C two induction pipes
D valveoperating mechanisms
E trunnions
F hollow ring
G crank-shaft
H ball-bearing
I cupped end
J shaft
L lubricating conduit

...
Date
Source https://www.google.co.in/patents/US1047839
Author Charles Benjamin Redrup
Permission
(Reusing this file)
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}}.

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inception

15 June 1911Gregorian

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Date/TimeThumbnailDimensionsUserComment
current14:27, 9 August 2015Thumbnail for version as of 14:27, 9 August 20151,896 × 2,556 (138 KB)MichaelFrey{{Information |Description = {{en|1=Revolving-cylinder internal-combustion engine}} {{:User:MichaelFrey/US1047839}}}} |Source =https://www.google.co.in/patents/US1047839 |Author =Charles Benjamin Redrup |Date...
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