4. Hydraulic and earth engineering
  5. Underground passageway, e.g., tunnel
  6. Boring

Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann

Corporate Assignee

Rate now
  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Corporate Assignee

active

No affiliations

Apparatus for excavating a substantially vertical slot

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Apparatus for setting and removing tunnel casing rings

Hydraulic and earth engineering – Miscellaneous
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drying the surface of a fresh concrete body

Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Earth pressure shield

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Earth pressure shield

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann does not yet have a rating. At this time, there are no reviews or comments for this inventor.

If you have personal experience with Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-P-243779

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.

Canada

 Charities
 Companies
 MP Candidates
 Patents
 Employee Salary Disclosure

World

 Places of the World
 Scientific Papers

United States

 Banks
 Companies
 Counties
 Patents
 Employee Salary Disclosure