Standard Piston Ring and Engineering Co: Difference between revisions
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[[Image:Im19200127Com-PistonRing.jpg|thumb| January 1920. ]] | [[Image:Im19200127Com-PistonRing.jpg|thumb| January 1920. ]] | ||
[[image:Im19211210IM-StandardPistonRing.jpg |thumb| Dec 1921. ]] | [[image:Im19211210IM-StandardPistonRing.jpg |thumb| Dec 1921. ]] | ||
[[Image:1932p071b Standard.jpg|thumb|1932.]] | |||
[[Image:1932p071b Standard.jpg|thumb| 1932.]] | |||
[[Image:Im1937Eng-Standard.jpg|thumb| 1937. ]] | |||
[[image:Im1940Ry-StanP.jpg|thumb| 1940. ]] | [[image:Im1940Ry-StanP.jpg|thumb| 1940. ]] | ||