| 221 |
Fire extinguisher and blowout preventer |
US3345535 |
1935-07-27 |
US2041394A |
1936-05-19 |
MARK BELCHER |
|
| 222 |
Cable valve for oil wells |
US48892730 |
1930-10-15 |
US1977504A |
1934-10-16 |
BROWN TONY A |
|
| 223 |
Apparatus to prevent petroleum fires |
US62677032 |
1932-07-30 |
US1960261A |
1934-05-29 |
GUILLERMO CENTENO |
|
| 224 |
Flow control apparatus for wells |
US63895532 |
1932-10-21 |
US1957119A |
1934-05-01 |
WARE ELMER G |
|
| 225 |
Control head |
US56842231 |
1931-10-12 |
US1944573A |
1934-01-23 |
RAYMOND WILLIAM A; HUMASON GRANVILLE A |
|
| 226 |
Apparatus for extinguishing burning oil wells |
US49029630 |
1930-10-21 |
US1921739A |
1933-08-08 |
KARL FLEISCHMANN |
|
| 227 |
Fire extinguishing device for gas and oil wells |
US39243329 |
1929-09-13 |
US1831488A |
1931-11-10 |
FLESHER TOMMIE R |
|
| 228 |
Casing head |
US33765829 |
1929-02-05 |
US1830205A |
1931-11-03 |
MCLAINE WILLIAM L |
|
| 229 |
Protective hood for oil and gas wells |
US33903729 |
1929-02-11 |
US1830061A |
1931-11-03 |
HOWE CHARLES S |
|
| 230 |
Snuffer |
US26085328 |
1928-03-12 |
US1787927A |
1931-01-06 |
BULLARD WILLIAM M |
|
| 231 |
Oil-well apparatus |
US25360428 |
1928-02-11 |
US1758453A |
1930-05-13 |
MAYS CHARLES P |
|
| 232 |
Oil-well control-head valve |
US69467824 |
1924-02-23 |
US1587030A |
1926-06-01 |
PALMER BENJAMIN F |
|
| 233 |
Method of and means for use in extinguishing oil or gas well fires |
US65858323 |
1923-08-21 |
US1584534A |
1926-05-11 |
HANNA JOHN G |
|
| 234 |
Pressure controller for oil wells |
US58491922 |
1922-08-28 |
US1557915A |
1925-10-20 |
VICTOR YORK |
|
| 235 |
Casing-head latch |
US73823724 |
1924-09-17 |
US1533875A |
1925-04-14 |
CLYDE MCCLEARY |
|
| 236 |
Gate valve |
US63804223 |
1923-05-10 |
US1530006A |
1925-03-17 |
MELTON JAMES T |
|
| 237 |
Housing for oil or other wells |
US59995422 |
1922-11-09 |
US1521088A |
1924-12-30 |
GIGNOUX JOHN R |
|
| 238 |
Fire-engine |
US35695320 |
1920-02-07 |
US1351700A |
1920-08-31 |
SMITH PAUL E |
|
| 239 |
Fire-extinguishing apparatus for wells. |
US1907404970 |
1907-12-03 |
US910295A |
1909-01-19 |
LAYNE MAHLON E |
|
| 240 |
Fire-extinguisher. |
US1907376368 |
1907-05-29 |
US864149A |
1907-08-27 |
BELL JAMES H |
|
