子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 261 | Ruling machine | US27304852 | 1952-02-23 | US2661538A | 1953-12-08 | DAVIES MOORE JOHN |
| 262 | Bronzing machine | US2147848 | 1948-04-16 | US2574633A | 1951-11-13 | LEOPOLD FALLER |
| 263 | Bronzing machine | US2211048 | 1948-04-20 | US2564680A | 1951-08-21 | LEOPOLD FALLER |
| 264 | Gutting die for printing presses of the platen type | US64680946 | 1946-02-11 | US2477288A | 1949-07-26 | CROSSLEY WILLIAM O |
| 265 | Perforator for printing presses | US67023346 | 1946-05-16 | US2434624A | 1948-01-13 | PETERSON HENNING E |
| 266 | Imprinting machine | US45154242 | 1942-07-20 | US2416707A | 1947-03-04 | METZNER ALBERT W |
| 267 | Strip feeding and severing apparatus | US39178241 | 1941-05-03 | US2361421A | 1944-10-31 | SHERMAN KATHERINE M; SHERMAN WILLIAM C; TURNER WELLMORE B |
| 268 | Recording machine | US44072142 | 1942-04-27 | US2344200A | 1944-03-14 | BARNARD HENRY H |
| 269 | Device for handling sheet material | US30856639 | 1939-12-11 | US2243557A | 1941-05-27 | FINSTER ROBERT F |
| 270 | Paper ruling machine | US36027340 | 1940-10-08 | US2236726A | 1941-04-01 | CLARKE CHARLES E; DUFFY ROBERT T; CLOUTIER JOSEPH W |
| 271 | Paper ruling machine | US36027240 | 1940-10-08 | US2236725A | 1941-04-01 | CLARKE CHARLES E; DUFFY ROBERT T; CLOUTIER JOSEPH W |
| 272 | Paper ruling machine | US28755239 | 1939-07-31 | US2236724A | 1941-04-01 | CLARKE CHARLES E; DUFFY ROBERT T; CLOUTIER JOSEPH W |
| 273 | Perforating attachment for presses or the like | US26651439 | 1939-04-07 | US2206112A | 1940-07-02 | ANDREW NEUHART |
| 274 | Printing and perforating apparatus | US17615837 | 1937-11-24 | US2169891A | 1939-08-15 | BEAL ARTHUR G; BERNARD HOLMBERG |
| 275 | Bronzing and the like | US14123837 | 1937-05-07 | US2169078A | 1939-08-08 | WILFRED WALTE |
| 276 | Fluid conductor for ruling machines and the like | US9349236 | 1936-07-30 | US2107230A | 1938-02-01 | COOK BINGHAM EUGENE; DANIEL FIGLIOLI |
| 277 | Perforator for printing presses | US7951636 | 1936-05-13 | US2084573A | 1937-06-22 | COWAN PARK W |
| 278 | Rule cutting machine | US3194235 | 1935-07-17 | US2074922A | 1937-03-23 | KESSEL MICHAEL D |
| 279 | Apparatus for printing and embossing in register | US74609534 | 1934-09-29 | US2054313A | 1936-09-15 | BRIGHT CHARLES G |
| 280 | Operating device for perforating blades used in the forms of printing machines | US72618634 | 1934-05-17 | US2018352A | 1935-10-22 | EUGEN FROLICH |
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