| 1933 SEVERY Electrical Musical Instrument Patent 9234 |
| 1933 JOHN HALMAGYI Electrical Musical Instrument |
| 1933 RANGER Electrical Music System Patent 10993 |
| 1933 LIONEL CORP Electrical Toy Patent Print Art |
| 1933 HERBERT Providing Energy Electrical Ignitors |
| 1933 HOWLAND Electrical Music System Patent |
| 1933 BROWN Design Electrical Plug HATFIELD Patent 30266 |
| 1933 FREDERICS Electrical Treating Art Print |
| 1933 LEEAH CHARLES Electrical Switch Patent |
| 1933 RCA CORP Electrical Music System Patent |
| 1933 NICHOLAS Electrical Musical Instrument Art |
| 1933 WILLIAM M GOULD Electrical Switch Patent |
| 1933 STANFORD PRODUCTS LTD Electrical Motor Art |
| 1933 BROWER WILLIAM Electrical Motor Patent |
| 1933 FREDERICS E Electrical Treating Art Print |
| 1933 MORTRUDE Electrical Treatment Cabinet Patent 29289 |
| 1933 EDISON SPLITDORF CORP Electrical Cut Out |
| 1933 WILHELM Receiving Electrical Impulses Art |
| 1933 SIGNAL Intermittently Operating Electrical |
| 1933 BROGGER Electrical Cut Out Patent Print Art |
| 1933 LUDWIG Intermittently Operating Electrical |
| 1933 CHICAGO WORLD'S FAIR POST CARD ELECTRICAL GROUP BY |
| 1933 Chicago Worlds Fair Electrical Group Postcard |
| 1933 Electrical Building, Chicago World's Fair |