| 1929 DIEHL WALTER Aircraft Control Patent Print |
| 1901 DIEHL Loop Taker Sewing Unit SINGER Patent 31159 |
| 1913 DIEHL Cycle Frame Transportation Patent 21708 |
| 1944 STANLEY DIEHL Projectile Patent Print Art |
| 1958 DIEHL Theftproof Ignition Device Patent |
| 1961 ANTON DIEHL Roundabout Patent Print Art |
| 1945 DIEHL Aircraft Wing Slot Baefle Patent |
| 1939 DIEHL Wire Vibration Damper Patent Print |
| 1923 DIEHL Railway Track Construction Patent |
| 1939 DIEHL Amphibian Hull Resilient Step Patent |
| 1928 DIEHL IMMANUEL Knockdown Boat Patent Print |
| 1917 DIEHL Educating Magnetic War Game Toy Patent 22545 |
| 1941 DIEHL WALTER Seaplane Wing Float Patent |
| 1939 DIEHL Deicing Means For Airplanes Patent |
| 1944 DIEHL JOHN Mooring Buoy Patent Print Art |
| 1966 DIEHL Hydrofoil Water Ski KAMENICK Patent 46943 |
| 1950 DIEHL Angle Of Attack Indicator Patent |
| 1923 DIEHL MFG CO Electric Motor Patent Print |
| 1922 RICHARD DIEHL Game Apparatus Patent Print |
| 1965 DIEHL Incendiary Shell Patent Print Art |
| 1920 DIEHL MFG COMPANY Motor Support Patent |
| 1879 DIEHL Electric Light Apparatus Clamp Patent 11209 |
| 1945 DIEHL Seadrome Contact Light Buoy Patent |
| 1901 DIEHL Thread Case Sewing Units SINGER Patent 31256 |
| 1967 DIEHL Percussion Fuze Patent Print Art |
| 1968 DIEHL Proportioning Apparatus Patent Print |
| 1953 GUSTIN New Design Gang Ripsaw DIEHL Patent 44661 |
| 1921 DIEHL MFG CO Sewing Machine Motor Patent |
| 1949 DIEHL Laminated Wooden Bowling Pin Patent |
| 1958 DIEHL Invalid Folding Walker WHEEL Patent 33252 |
| 1939 DIEHL Spray Strip For Seaplanes Patent |
| 1934 DIEHL WALTER Cowling Patent Print Art |
| 1936 DIEHL Tensioning Device Patent Print Art |