Uncategorized
Inventor
Carbonization of coal
Derivatives of 1,2,3-benzothiadiazole, their preparation,...
Elastic cord
Heat applying means to retorts, etc.
Make and break or change-over electric switches
Carbonization of coal
Fishing tackle
Heat applying means to retorts, etc.
Make and break or change-over electric switches
Remote control and method of using same for controlling...
LandOfFree
John Roberts does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with John Roberts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and John Roberts will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-373386