Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Robert; Henri F. A.
Address:
Herblay, FR
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
4860837 Rotary and reciprocating drilling machine August 29, 1989
The invention relates to a drilling machine comprising a kelly (5) suspended from a boom (3) mounted for pivoting on a chassis (1), a rotary table (7) through which the kelly is movable axially, drive members provided in the rotary table for rotating the kelly and a rotary drilling t










 
 
  Recently Added Patents
Apparatus and method for evaluating an activity distribution, and irradiation system
Encoding and/or decoding memory devices and methods thereof
Wound dressings
Codeword-enhanced peer-to-peer authentication
Method for evaluating performance characteristics of dental curing lights
Documentation roadmaps and community networking for developers on large projects
Browsing or searching user interfaces and other aspects
  Randomly Featured Patents
Method and system for maintaining distance between elevator cars in an elevator system with multiple cars in a single hoistway
Method and system for short message service (SMS) transactions for wireless devices
Laminated fiberglass tennis racket
Analyzing apparatus, program, defect inspection apparatus, defect review apparatus, analysis system, and analysis method
Terminally reactive polysilane and process for making
Methods for forming thin layers of materials on micro-device workpieces
Emissions monitoring and tracking system
Method of and apparatus for automatic measurement of impedance or other parameters with microprocessor calculation techniques
Antihypertensive 4[(3-alkylamino-2-hydroxypropyl)-oxyiminomethyl phenyl]-1,4-dihydropyridines
Fishing line length measuring device for fishing reels