Grenning, Frederick H. Trademarks
LITTLE HOSE MONSTER
Apparatus for testing gas, liquids and solids; Automatic liquid-flow control machines and instruments; Flow switches for…
Owned by: Grenning, Frederick H.
Serial Number: 77651731
PITOTLESS NOZZEL
Flow meters; Instruments for detecting and measuring two-dimensional distribution of force and pressure
Owned by: Grenning, Frederick H.
Serial Number: 77651743
