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Improvement In Rotary Valve And Seat.
Patent for an improvement in the construction of a rotary valve and seat. Specifications for the new construction and illustrations are included.
Date:
August 5, 1879
Creator:
Watkins, Edward L.
System:
The Portal to Texas History
Improvement in Car-Axle Boxes.
Patent for improvement to car-axle boxes, specifically "Oil-Collectors for Railroad Journals" (line 6), including illustrations.
Date:
August 5, 1879
Creator:
Morris, Robert C. & McLane, Hiram H.
System:
The Portal to Texas History