Drilldown: Patents
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Patents > National tech categories :
AT 77d or
USPC 244/80
& Citations from after 1930:
None
& Number of figures:
11-30
Use the filters below to narrow your results.
None (1) ·
Adolf Warchalowski (1) ·
Albert Hugo Friedel (1) ·
Alfred John Macy (1) ·
Alphonse Papin (1) ·
Anthony Rudolph Silverston (1) ·
Charles B. Thomas (1) ·
Didier Rouilly (1) ·
Edmund Sparmann (1) ·
Eduard Adamek (1) ·
Franz Wondra (1) ·
Franz Xaver Wels (1) ·
George C. Beidler (1) ·
Gustave Plaisant (1) ·
Ignaz Etrich (1) ·
John P. Tarbox (1) ·
Ludolf G. Schroeder (1) ·
Ludwig Schmidl (1) ·
Maurice Léger (1) ·
Peter Cooper Hewitt (1) ·
Philippe Delbert (1) ·
Robert M. Thompson (1) ·
Samuel H. Gilson (1) ·
Walter Hermann von Mach (1)
None (5) ·
Albert Hugo Friedel (1) ·
Alfred John Macy (1) ·
Alphonse Papin (1) ·
Charles Bartlett Thomas (1) ·
Didier Rouilly (1) ·
Edmund Sparmann (1) ·
Eduard Adamek (1) ·
Franz Wondra (1) ·
Franz Xaver Wels (1) ·
George C. Beidler (1) ·
Gustave Plaisant (1) ·
Ignaz Etrich (1) ·
Ludolf G. Schroeder (1) ·
Ludwig Schmidl (1) ·
Maurice Léger (1) ·
Peter Cooper Hewitt (1) ·
Philippe Delbert (1) ·
Robert M. Thompson (1) ·
Samuel H. Gilson (1)
Tech fields:
Showing below up to 22 results in range #1 to #22.