Uncategorized
Inventor
Benzodiazinone-pyridazinone and hydroxy-pyrazolyl compounds,...
Bicyclic benzenoid aminoalkylene ethers and thioethers, and...
Bicyclic nitrogen heterocyclic ethers and thioethers, and...
Building construction
Building construction
Benzodiazinone-pyridazinone and hydroxy-pyrazolyl compounds,...
Device for sharpening band saws
Electric conductor
Electrical conductor
Improvements on hoop planing machines
LandOfFree
Henry F. Campbell does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Henry F. Campbell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Henry F. Campbell will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-62215