Digest of United States Patents of Air, Caloric, Gas, and Oil Engines, 1789-1905: Chronologically Arranged Under Two Hundred and Five Subdivisions ..., Volume 3

Digest of United States Patents of Air, Caloric, Gas, and Oil Engines, 1789-1905: Chronologically Arranged Under Two Hundred and Five Subdivisions ..., Volume 2

Digest of United States Patents of Air, Caloric, Gas, and Oil Engines, 1789-1905: Chronologically Arranged Under Two Hundred and Five Subdivisions ..., Volume 1

Digest of United States Patents of Air, Caloric, Gas, and Oil Engines: Volume 5

Digest of United States Patents of Air, Caloric, Gas, and Oil Engines: Volume 1

Digest of United States Patents of Air, Caloric, Gas, and Oil Engines: Volume 2

Supplement to Allen's Digest of Agricultural Implements: Patented in the United States from 1789 to July 1881 Beginning with July 1881 to and Including June 1884

Digest of United States Automobile Patents from 1789 to July 1, 1899: Including All Patents Officially Classed as Traction-engines for the Same Period. Chronologically Arranged ... Together with Lists of Patents in the Classes of Portable-engines, Traction-wheels, Electric Locomotives, and Electric Railway Battery Systems. A Complete Exposition of the Patented Art of Horseless Carriages, Volume 1

Digest of United States Patents of Air, Caloric, Gas, and Oil Engines, 1789-1905: Chronologically Arranged Under Two Hundred and Five Subdivisions ..., Volume 5

Digest of United States Patents of Air, Caloric, Gas, and Oil Engines: Volume 5

Digest of United States Patents of Air, Caloric, Gas, and Oil Engines, 1789-1905: Chronologically Arranged Under Two Hundred and Five Subdivisions ..., Volume 4

Digest of United States Automobile Patents from 1789 to July 1, 1899: Including All Patents Officially Classed as Traction-engines for the Same Period. Chronologically Arranged ... Together with Lists of Patents in the Classes of Portable-engines, Traction-wheels, Electric Locomotives, and Electric Railway Battery Systems. A Complete Exposition of the Patented Art of Horseless Carriages, Volume 2