ES12116A1 -
A procedure or mechanical system to improve constructions on railroads moved by the action of gravity that travel in a straight direction on inclined surfaces.
- Google Patents
A procedure or mechanical system to improve constructions on railroads moved by the action of gravity that travel in a straight direction on inclined surfaces.
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Individual
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ES12116A1891-05-201891-05-20
A procedure or mechanical system to improve constructions on railroads moved by the action of gravity that travel in a straight direction on inclined surfaces.
ExpiredES12116A1
(en)
A procedure or mechanical system to improve constructions on railroads moved by the action of gravity that travel in a straight direction on inclined surfaces.
A procedure or mechanical system to improve constructions on railroads moved by the action of gravity that travel in a straight direction on inclined surfaces.
A procedure or mechanical system to improve constructions on railroads moved by the action of gravity that travel in a straight direction on inclined surfaces.
A procedure or mechanical system to improve constructions on railroads moved by the action of gravity that travel in a straight direction on inclined surfaces.