Railroad,
Locomotive,
and Rolling Stock History References
Locomotive
Patents
Over
200 pages detailing over a century and a half of railroad development,
through official US Government patent images of steam, diesel, and
turbine locomotives. Most patents have at least a three-view of the
particular locomotive, while many go into even further detail.
Many
patents are for designs that were actually built, while others are
recognizable as leading to production locomotives.There are also some
speculative "what-if" type designs listed.

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Version