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National Machinery Co

National M

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2250629A	Nonrepeat valve	Expired / Lapsed	1938-12-12	1941-07-29	0	Details
US2210227A	Forging press control	Expired / Lapsed	1938-09-12	1940-08-06	0	Details
US2192734A	Control mechanism for forging machines	Expired / Lapsed	1936-02-18	1940-03-05	0	Details
US1916608A	Apparatus for handling forgings	Expired / Lapsed	1929-08-02	1933-07-04	0	Details