Mining or in situ disintegration of hard material
Expansible breaking-down devices
Wedge
Inventor
active
Hydraulically actuated tool for mechanically splitting rock-like
Hydraulically actuated tool for mechanically splitting rock-like
Reciprocated concrete surfacer member with shielded spring retur
Wear or thrust plates for hydraulic rock splitting apparatus
Wear or thrust plates for hydraulic rock splitting apparatus
No associations
LandOfFree
Edward R. Langfield does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Edward R. Langfield, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Edward R. Langfield will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-1444505