| 1938 BUTLER Steerable Tail Wheel Patent Print |
| 1961 BUTLER JR Golf Game Device Patent Print Art |
| 1929 BUTLER JAY Motor Vehicle Body Patent Print |
| 1950 BUTLER Golf Practice Apparatus Patent Print |
| 1944 BUTLER Flexible Cell Support Patent Print |
| 1924 BUTLER Trouble Car Attachment Patent Print |
| 1941 A H BUTLER Fish Net Patent Print Art |
| 1970 BUTLER AMOS Moving Cart Patent Print Art |
| 1922 BUTLER JOHN Luminous Gun Sight Patent Print |
| 1927 BUTLER WILLIAM Golf Tee Patent Print Art |
| 1934 BUTLER ARTHUR Bungee Control Patent Print |
| 1923 BUTLER ROBERT Switch Stand Patent Print Art |
| 1938 BUTLER Aircraft Control System Patent Print |
| 1969 BUTLER CHARLES Inflatable Wing Patent Print |
| 1921 BUTLER Tripod For Machine Guns Patent Print |
| 1933 BUTLER JOHN Game Patent Print Art |
| 1927 BUTLER RUBY Toy Animal Patent Print Art |
| 1942 BUTLER Mechanical Target Toy Patent Print |
| 1931 BUTLER GLENN Oar Patent Print Art |
| 1926 BUTLER THOMAS Gun Patent Print Art |
| 1963 JAMES BUTLER Disc Brakes Patent Print Art |
| 1924 BUTLER GEORGE Game Board Patent Print Art |
| 1937 BUTLER Folding Landing Gear Patent Print |
| 1960 BUTLER Pipe Handling Vehicle Patent Print |
| 1963 BUTLER JACOB Mouthpiece Patent Print Art |
| 1922 JAMES BUTLER Cattle Guard Patent Print Art |
| 1936 BUTLER ARTHUR Landing Gear Patent Print Art |
| 1954 BUTLER Adjustable Coupling Patent Print Art |
| 1926 BUTLER Signaling Apparatus Patent Print Art |
| 1968 BUTLER BERNARD Boat Anchor Patent Print Art |
| 1923 BUTLER ROBERT Rail Clamp Patent Print Art |
| 1946 BUTLER JR Fuse Patent Print Art |
| 1958 BUTLER MACLEAN Spring Assembly Patent Print |
| 1936 BUTLER JR Door Construction Patent Print |
| 1921 BUTLER JOHN Bipod Patent Print Art |
| 1951 MERRICK BUTLER Arrow Patent Print Art |
| 1960 BUTLER JAMES Live Bait Box Patent Print Art |
| 1920 BUTLER ROBERT Switch Stand Patent Print Art |
| 1921 BUTLER Bipod Rest For Firearms Patent Print |
| 1938 BUTLER JR Ski Press Patent Print Art |
| 1933 BUTLER ANDY Battery Hanger Patent Print Art |
| 1968 BUTLER Directional Transducer Patent Print |
| 1953 BUTLER VAN Aircraft Wing Flap Patent Print |
| 1921 BUTLER DAVID Embroidery Needle Patent Print |
| 1962 BUTLER STANLEY Toy Targets Patent Print Art |
| 1946 JAMES BUTLER Brake Apparatus Patent Print |
| 1943 BUTLER ARTHUR Undergarment Patent Print Art |
| 1920 BUTLER DAVID Embroidery Needle Patent Print |
| 1968 BUTLER Boat Controllers Patent Print Art |
| 1920 BUTLER AMES Electric Horn Patent Print Art |
| 1926 BUTLER AMES Electric Horn Patent Print Art |
| 1930 BUTLER AMES Heterodyning Horn Patent Print |