| 1949 CHRISTENSEN Sewing Machine Patent Print Art |
| 1929 CHRISTENSEN HILDUR Toy Patent Print Art |
| 1944 CHRISTENSEN Sewing Machine Patent Print Art |
| 1932 CHRISTENSEN Sewing Machine Patent Print Art |
| 1947 CHRISTENSEN Sewing Machine Patent Print Art |
| 1950 CHRISTENSEN Sewing Machine Patent Print Art |
| 1948 CHRISTENSEN Sewing Machine UNION Patent 31980 |
| 1945 CHRISTENSEN Sewing Machine Patent Print Art |
| 1957 CHRISTENSEN Head Gig Spearing Fish Patent 23618 |
| 1967 CHRISTENSEN Prosthetic Attachments Patent 6888 |
| 1947 CHRISTENSEN Fluid Control System Patent |
| 1951 CHRISTENSEN Sewing Machine Patent Print Art |
| 1939 CHRISTENSEN Dispenser WHITTED Patent 32877 |
| 1951 CHRISTENSEN PAUL Mine Patent Print Art |
| 1929 CHRISTENSEN Lady'S Undergarment Patent |
| 1942 CHRISTENSEN Sewing Machine Patent Print Art |
| 1962 CHRISTENSEN BYRON Cable Lock Patent Print |
| 1934 CHRISTENSEN Sewing Machine Patent Print Art |
| 1936 CHRISTENSEN Sewing Machine Patent Print Art |
| 1926 CHRISTENSEN VIGGO Tee Mold Patent Print Art |
| 1918 CHRISTENSEN Design Cigar Cutter Patent 39147 |
| 1948 CHRISTENSEN Sewing Machine Patent Print Art |
| 1955 CHRISTENSEN Cartridge Holder Patent Print |
| 1954 CHRISTENSEN OSCAR Clarinet Patent Print Art |
| 1940 CHRISTENSEN Vaporizer MAYFLOWER Patent 26168 |
| 1922 SVERRE CHRISTENSEN Fishhook Patent Print |
| 1935 CHRISTENSEN Felling Machine Patent Print |
| 1926 CHRISTENSEN Feed Mechanism Patent Print Art |
| 1938 CHRISTENSEN HARRY Animal Marker Patent |
| 1931 CHRISTENSEN Seam For Sewed Articles Patent |
| 1922 CHRISTENSEN FRANK Auto Lock Patent Print |
| 1956 CHRISTENSEN Closure Device Patent Print Art |
| 1946 CHRISTENSEN Sewing Machine Patent Print Art |
| 1945 CHRISTENSEN Sewing Machine Unit Patent |
| 1930 CHRISTENSEN Sweing Machine Patent Print Art |
| 1955 CHRISTENSEN Computing Gun Sight Patent |
| 1963 PIERSCINSKI Stilt Design CHRISTENSEN Patent 29751 |
| 1953 CHRISTENSEN Valve Mechanism Patent Print |
| 1951 CHRISTENSEN SUE Corset Patent Print Art |
| 1940 CHRISTENSEN Sewing Machine Patent Print Art |
| 1964 CHRISTENSEN Artificial Fly Patent Print Art |
| 1930 EMIL CHRISTENSEN Socket Patent Print Art |
| 1939 CHRISTENSEN Boehm System Clarinet Patent |
| 1966 CHRISTENSEN HAROLD Hand Truck Patent Print |
| 1958 CHRISTENSEN Guard Bearings Patent Print Art |
| 1937 CHRISTENSEN Sewing Machine Patent Print Art |
| 1935 CHRISTENSEN Sewing Machine Patent Print Art |
| 1941 CHRISTENSEN Sewing Machine Patent Print Art |
| 1938 CHRISTENSEN Sewing Machine Patent Print Art |
| 1965 CHRISTENSEN Marine Propulsion System Patent |