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National Malleable and Steel Castings Co

National M

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
GB797164A	Method of making a cushioning unit	Expired / Lapsed	1956-05-24	—	0	Details
US2889939A	Car coupler	Expired / Lapsed	1957-07-16	1959-06-09	0	Details
US2575123A	Automatic jacket and weight shifter for snap flask mold con…	Expired / Lapsed	1948-10-29	1951-11-13	0	Details
US2227922A	Dust guard	Expired / Lapsed	1936-07-07	1941-01-07	0	Details
US1921011A	Coupler yoke	Expired / Lapsed	1927-04-06	1933-08-08	0	Details