| 1936 HEATH Electric Vacuum Horn Patent Print Art |
| 1928 DELCO REMY CORP Electric Horn Patent Print |
| 1944 LUCAS LTD JOSEPH Electric Horn Patent Print |
| 1941 DELTA ELECTRIC COMPANY Horn Patent Print |
| 1943 JOE WHITE Electric Horn Patent Print Art |
| 1942 GEN MOTORS CORP Electric Horn Patent Print |
| 1943 GEN MOTORS CORP Electric Horn Patent Print |
| 1935 GUSTAV ZEININGER Electric Horn Patent Print |
| 1935 BOSCH ROBERT Electric Horn Patent Print Art |
| 1928 MCCONNELL DUNCAN Electric Horn Patent Print |
| 1951 E A LAB INC Electric Sound Horn Patent |
| 1944 OLIVER LUCAS Electric Horn Patent Print Art |
| 1954 JUBILEE MFG COMPANY Electric Horn Patent |
| 1942 JOE WHITE Electric Horn Patent Print Art |
| 1925 ALFRED GRAHAM Electric Horn Patent Print |
| 1936 GUSTAV ZEININGER Electric Horn Patent Print |
| 1944 CHURCH ERIC Electric Horn Patent Print Art |
| 1951 AUFIERO Electric Sound Horn Patent Print |
| 1929 DELCO REMY CORP Electric Horn Patent Print |
| 1952 JUBILEE MFG COMPANY Electric Horn Patent |
| 1952 NIELSEN RICHARD Electric Horn Patent Print |
| 1936 BOSCH ROBERT Electric Horn Patent Print Art |
| 1924 ARTHUR Electric Sound Producing Horn Patent |
| 1938 BENJAMIN ELECTRIC MFG CO Motor Horn Patent |
| 1920 BUTLER AMES Electric Horn Patent Print Art |
| 1926 BUTLER AMES Electric Horn Patent Print Art |
| 1930 WESTINGHOUSE ELECTRIC & MFG CO Horn Patent |
| 1954 PETER NIELSEN Electric Horn Patent Print |
| 1929 CRITCHFIELD ROBERT Electric Horn Patent |