Invention Grant
- Patent Title: Method and apparatus for retarding freely-falling mold charges
- Patent Title (中): 用于延迟自由落体模具充电的方法和装置
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Application No.: US32438428Application Date: 1928-12-07
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Publication No.: US1755397APublication Date: 1930-04-22
- Inventor: HUNTER ALFRED R
- Applicant: HARTFORD EMPIRE CO
- Assignee: Hartford Empire Co
- Current Assignee: Hartford Empire Co
- Priority: US32438428 1928-12-07
- Main IPC: C03B7/16
- IPC: C03B7/16
Information query
