Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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Filing date
Publication date
Application filed by Electrical Research Products IncfiledCriticalElectrical Research Products Inc
Application grantedgrantedCritical
Publication of FR672620ApublicationCriticalpatent/FR672620A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
B21C3/18—Making tools by operations not covered by a single other subclass; Repairing
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR672620D1928-04-121929-04-05Articles en chrôme et procédé de fabrication de ceux-ci
ExpiredFR672620A
(fr)