Uncategorized
Inventor
Uncategorized
Inventor
Combined telegraph printer and perforator
Steel manufacture
Telegraph printer
Telegraph selector mechanism
LandOfFree
Robert Frederick Dirkes does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Robert Frederick Dirkes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Robert Frederick Dirkes will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-58111