Patents Represented by Law Firm Browning, Bushman & Zamedki
  • Mobile drilling apparatus
    Patent number: 4126193
    Abstract: Drilling apparatus mounted on a self-propelled base equipped with a joint to permit use on uneven terrain and drilling at various angles with respect to the terrain surface; embodiments of the invention feature suction apparatus for removing drill cuttings, and foldable masts.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: November 21, 1978
    Inventors: Cicero C. Brown, deceased, by Joe R. Brown, executor