| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | Gun barrel detaching and retaining device | US67498757 | 1957-07-29 | US2858738A | 1958-11-04 | ARMBRUSTER RALPH E; SHERERTZ CHARLES W |
| 222 | Cooling mechanism for machine guns and the like | US22885251 | 1951-05-29 | US2806409A | 1957-09-17 | PURCELLA WILLIAM P; PURCELLA JOSEPH F |
| 223 | Gun cooling system | US60855945 | 1945-08-02 | US2478950A | 1949-08-16 | SPURLING NELSON E |
| 224 | Thermostatically controlled firearm cooling system | US58422345 | 1945-03-22 | US2428359A | 1947-10-07 | DE PERMENTIER PAUL R |
| 225 | Cooling means for rapid firing guns | US40845941 | 1941-08-27 | US2376321A | 1945-05-22 | ALBERTSON JR BENJAMIN S |
| 226 | Barrel mounting | US34436940 | 1940-07-08 | US2345596A | 1944-04-04 | GREEN SAMUEL G |
| 227 | Heat exchange unit | US35352140 | 1940-08-21 | US2287066A | 1942-06-23 | ROGERS GEORGE D |
| 228 | Machine gun | US19353438 | 1938-03-02 | US2205426A | 1940-06-25 | LOCHHEAD JOHN L |
| 229 | Cooling of machine guns | US17254037 | 1937-11-03 | US2146554A | 1939-02-07 | ROSSMANN PETER F |
| 230 | Machine gun with adjustable packing | US712935 | 1935-02-18 | US2140808A | 1938-12-20 | MOORE FREDERICK T |
| 231 | Muzzle attachment for guns | US10594936 | 1936-10-16 | US2128936A | 1938-09-06 | GREEN SAMUEL G |
| 232 | Cooling apparatus | US19353538 | 1938-03-02 | US2126792A | 1938-08-16 | MACGREGOR STEPHEN H |
| 233 | Gland adjusting mechanism | US11655136 | 1936-12-18 | US2121030A | 1938-06-21 | GREEN SAMUEL G |
| 234 | Device for cooling quick firing arms | US73570234 | 1934-07-17 | US2086520A | 1937-07-13 | WERNER BAUMANN |
| 235 | Packed joint for guns | US57681931 | 1931-11-23 | US2026528A | 1936-01-07 | GREEN SAMUEL G |
| 236 | Method of and apparatus for cooling gun rarrels | US1056325 | 1925-02-20 | US1631190A | 1927-06-07 | BULL WILLIAM R |
| 237 | Machine gun and vehicle | US22100518 | 1918-03-07 | US1603099A | 1926-10-12 | CROCKETT WRIGHT WILLIE |
| 238 | Quick-firing gun | US42925 | 1925-01-03 | US1543262A | 1925-06-23 | EMILIEN METHLIN NICOLAS |
| 239 | Automatic firearm | US13653116 | 1916-12-12 | US1454039A | 1923-05-08 | LOUIS CHEVALLIER ARNOLD |
| 240 | mccrudden | US39015320 | 1920-06-19 | US1452123A | 1923-04-17 | |
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