| 1930 POLLAK MFG COMPANY Cowl Construction Patent |
| 1930 OUTING MFG COMPANY Banjo Patent Print Art |
| 1930 LUX CLOCK MFG COMPANY Alarm Clock Patent |
| 1930 EVERWEAR MFG COMPANY Hanger Patent Print |
| 1930 DAISY MFG COMPANY Air Gun Patent Print Art |
| 1930 CHASE FOUNDRY AND MFG COMPANY Truck Patent |
| 1930 NORMAN MFG COMPANY Wagon Patent Print Art |
| 1930 AYVAD MFG COMPANY Life Preserver Patent |
| 1930 MURRAY OHIO MFG COMPANY Wheeled Toy Patent |
| 1930 W H REISNER MFG COMPANY Organ Valve Patent |
| 1930 SWITLIK MFG COMPANY Parachute Pack Patent |
| 1930 DOERR MFG COMPANY Securing Means Patent |
| 1930 NORTHWAY MFG COMPANY Ski Sled Patent Print |
| 1930 MCLOUGHLIN MFG COMPANY Undergarment Patent |
| 1930 DEWEY CLARENCE Banjo OUTING MFG COMPANY Art |
| 1930 STRUPE CECIL Tympano LEEDY MFG COMPANY Art |
| 1930 WOLVERINE SUPPLY & MFG COMPANY Toy Patent |
| 1930 HORTON MFG COMPANY Fishing Rod Patent Print |
| 1930 LEEDY MFG COMPANY Tympano Patent Print Art |
| 1930 RAWLINGS MFG COMPANY Fielder'S Glove Patent |
| 1930 MURRAY OHIO MFG COMPANY Toy Airplane Patent |
| mint 1930-50 LINEN MFG COMPANY NASHUA NEW HAMPSHIRE NH |