| 1958 GARRETT CORP Cabin Pressure Outflow Valve |
| 1958 SCHULZ TOOL CO Vent Pilot Valve Art Print |
| 1958 HART Flapper Nozzle Valve System Patent |
| 1958 LUNDE Railway Car Dump Valve Patent Print |
| 1958 SCHULZ TOOL CO Fluid Control Valve Art |
| 1958 MOSHER Vent And Pilot Valve Patent Print |
| 1958 NORELLI Rotary Valve Salvage Art Print |
| 1958 MAULDIN Cabin Pressure Outflow Valve Patent |
| 1958 FIREWEL IND Demand Valve Patent Print Art |
| 1958 MEIDENBAUER JR Demand Valve Patent Print |
| 1958 SILVERMAN Flush Type Topping Off Valve Art |
| 1958 MOSHER Quick Throw Pilot Valve Patent Print |
| 1958 MACKAL Quickly Disassembled Inflation Relief Valve |
| 1958 THEOPHIL Aircraft Tank Vent Valve Patent |
| 1958 WESTELL Regulator Valve Patent Print Art |
| 1958 MOSHER Fluid Control Valve Patent Print Art |
| 1958 AERO SUPPLY INC Aircraft Tank Vent Valve |
| 1958 BENDIX AVIAT CORP Valve Device Patent Print |
| 1958 KLINE Valve Structure Submarine Breathing |
| 1958 GEN MOTORS CORP Governor Valve Assembly Art |
| 1958 GEN DYNAMICS CORP Flapper Nozzle Valve System |
| 1958 ARO EQUIPMENT CORP Valve Structure Patent |
| 1958 MAGOR CAR CORP Railway Car Dump Valve Art |
| 1958 VEHIGE JOSEPH Valve Device Patent Print Art |
| 1958 SCHULZ TOOL CO Quick Throw Pilot Valve Art |
| 1958 FISCHER Cabin Pressure Outflow Valve Patent |
| 1958 WESTELL WILLIAM Regulator Valve Patent |
| 1958 DAVID GREGG Valve Device Patent Print Art |
| 1958 BERNINGER Governor Valve Assembly Patent |