John E. McDonald

Follow

Person

San Juan Capistrano, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Thermal actuator
- Patent number 4,841,730
- Issue date Jun 27, 1989
- PDA Engineering
- John E. McDonald
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...