Invention Grant
- Patent Title: Solvent softening shoe stiffener
- Patent Title (中): 溶剂软化鞋加强筋
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Application No.: US30836652Application Date: 1952-09-08
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Publication No.: US2758045APublication Date: 1956-08-07
- Inventor: HEATON WALTER H , MORSE RONALD W
- Applicant: BECKWITH MFG CO
- Assignee: Beckwith Mfg Co
- Current Assignee: Beckwith Mfg Co
- Priority: US30836652 1952-09-08
- Main IPC: A43B23/08
- IPC: A43B23/08 ; B29C65/48 ; B29C70/08
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